Find Authority Records

Comments? Abstract & revision notes PDF Search the Authority File Browse the Authority File Indexes and indexed fields (Authority File and Authority History database) View authority search results Use authority search results Use Authority File browse results (root and expanded) Show Flagged Authority records screen Search the Authority History database Use Authority History search results Browse the Authority History database Use Authority History browse results Connexion Browser Glossary

Find Authority Records

Search the Authority File

Why search for authority records?

When creating or modifying a bibliographic record, determine the correct forms for names of persons, organizations, conferences, and/or titles associated with the resource you are describing.
When adding subject headings to a bibliographic record, authority records enable you to determine established headings.

About the Authority File

The Library of Congress and NACO libraries create and maintain the authority records.
Records are stored and displayed in the MARC21 authorities format.

Search methods available

Command line search. Enter any keyword, numeric, or derived search. For numeric and keyword searches, include index labels; index labels are optional for derived searches. From the command line, you can also enter a phrase search (browse query), including the scan command and index label (sca pn:).
Keyword search. You can enter a keyword search in the Keyword/Numeric Search area. Use text boxes, lists of indexes, and lists of Boolean operators to construct a search. Omit index labels.
Numeric search. Enter a numeric search for an LCCN, ISBN, ISSN, or OCLC ARN using either the Keyword /Numeric Search area or the command line.
Derived search. Enter a derived search for a personal name, corporate/conference name, title, or topical subject using the command line.
Phrase search. Enter a phrase (scan) search on the Search Authorities screen (as a command line search) or on the Browse Authorities screen (if Browse button and Browse Options appear on the Authorities tab).

Command Line Search

	Action
1	On the Authorities tab, click Search. Or Press <Ctrl><Shift><J>. The Search Authorities screen appears.
2	In the Command Line Search area, type an Authority File keyword, numeric, derived, or phrase search in the Search for text box. Omit the Find command (fin) from a keyword, numeric or derived search. Phrase search tips. Include the Scan command (sca) in phrase searches. Omit initial articles. You can enter diacritics and/or subfield codes; the system removes them before processing the search. Include an index label, followed by a colon, in a numeric, keyword, or phrase search (sn:1234-5678 or pn:vivaldi or sca pn:vivaldi). Keyword search tips. In a keyword search, omit prepositions and articles. You can enter diacritics; the system removes them before processing the search. Do not enter subfield codes in a keyword search. Derived search tips. Include or omit the index label for a derived personal name, title, or subject search. If included, the index label must be followed by a colon. For a derived corporate, conference, or geographic name search, you must include either the index label (cd:) or an equal sign (=). Combine searches with Boolean operators and, or, or not. (Note: You cannot use Boolean operators in scan (phrase search/browse) queries.) For information on keyword, numeric, or derived searching, see the next section in this topic.
3	(Optional) Show or hide cross references in keyword search results Two check boxes below the Search for box let you specify which cross reference tracings, if any, appear in search results. To show only the main entry for each retrieved record, clear both check boxes. To show See reference tracings in addition to the main entry for each record, select the check box labeled Show See References in Results. To show See Also reference tracings for each main entry, select the check box labeled Show See Also References in Results. To include both See and See Also references for each main entry, select both check boxes. Notes: Settings apply to keyword search results only; the system ignores these options for phrase searches (browsing). Settings apply when you search for a term from browse results by clicking a term that matches multiple authority records. While viewing search results, you can use the Action/Sort list to show or hide See references and/or See Also references. Settings for these options are retained until you change them.
4	Check your search statement for errors in format, index labels, or spelling. Clear search To clear the Search for text box, click Clear Search. Check boxes below the search form retain their settings (selected or cleared).
5	When finished entering the search, click Search or press <Enter>. Note: Command line search statement retained Your search statement remains in the Search for text box until you revise the search or click Clear Search. Settings for the Show References options are retained until you change them.

Keyword/Numeric Search

	Action
1	On the Authorities tab, under Search Options, click Authority File. Or Press <Ctrl><Shift><J>.
2	In the Keyword/Numeric Search area, construct a search to specify the authority records you want to retrieve. Type search term(s) in 1 or more boxes in the form. For each term, select the index to search from the list to the right of the box in which you enter the term. Open the list and then click the index you want to use. To search for 2 or more terms in the same index, type the terms in 1 text box and select an index. Type the significant words of the name in order as the name usually appears. Or type the significant words of a subject heading. Separate words with spaces. Spaces between words are treated as and operators; you can also combine terms with or and/or exclude terms with not. Omit prepositions and articles. You can enter diacritics; the system removes them before processing the search. Do not enter subfield codes in a keyword search. To search for 2 or more terms in different indexes, type each term in a separate text box and select the index to search for each term. Select the Boolean operator with which to combine the term(s). Use the list of operators at the left end of the box in which you enter the second term. Open the list and then click the operator you want to use. Use truncation to expand a term to include variant endings. Or use truncation when you know only the first part of a term. Type the first characters of the term (include at least 3 characters); then type an asterisk (). Examples:librar, comput, catalog Use character masking (wildcards) to expand a term to include variant spellings or when you are unsure of the correct spelling for part of a term. Type a question mark (?) or a number sign (#) in place of the character(s) you want to mask. Use the question mark to retrieve variants of 0 or more characters. Examples:col?r retrieves `color` or `colour`; int?net retrieves `internet` or `intranet`. Use the number sign to retrieve variants of exactly 1 character. Example:wom#n retrieves both `woman` and `women`.
3	(Optional) Show or hide cross references in results Two check boxes below the search entry form let you specify which cross reference tracings, if any, appear in search results. To show only the main entry for each retrieved record, clear both check boxes. To show See reference tracings in addition to the main entry for each record, select the check box labeled Show See References in Results. To show See Also reference tracings for each main entry, select the check box labeled Show See Also References in Results. To include both See and See Also references for each main entry, select both check boxes. Notes: While viewing search results, you can use the Action/Sort list to show or hide See references and/or See Also references. Settings for these options are retained until you change them.
4	Check the search form for errors in the terms, index selections, or operators. Clear search To clear the text boxes, click Clear Search. Index lists retain the last index you selected. Operator lists retain the last operator you selected. Check boxes below the search form retain their settings (selected or cleared).
5	Click Search or press <Enter>. Retain search To preserve keywords you typed in the text boxes, select the Retain Search check box. If Retain Search is not selected (the default setting), the system clears the text boxes. Index lists always retain the last index you selected. Lists of Boolean operators always retain the last operator you selected. Settings for the Show References options are retained until you change them.

Numeric search indexes

Numeric search	Label	Format	Example
ARN	an:	Type all digits. Leading zeros are optional.	01450635 1450635 an:01450635 an:1450635
LCCN (Indexed in 010 and 667)	ln:	Type year portion (2 or 4 digits) and control number. Leading zeros in the control number portion are optional. Alphabetic prefix is optional to increase precision Hyphen is optional when you specify the LCCN index. Include the index label (ln:) or select LCCN from an index list. Note: Indexing field 667 helps catalogers identify the history of personal names previously in undifferentiated authority records and subsequently established as a separate authority record, using unique control numbers. The index only retrieves records with 667 fields that contain the word "undifferentiated" (in upper or lower case). No textual data in the 667 field is indexed. The system does not compare or verify LCCNs in field 667 with LCCNs in field 010.	78-5201 ln:78-5201 2001-12345 82-000012 82-12 n85-204041 ln:85-204041 ln:sh85-061704 sh85-61704
ISBN	bn:	10 digits, no hyphen. May omit leading zero. Type x (final character) in upper- or lowercase.	1556156790 bn:1556156790
ISSN	sn:	4 digits, hyphen, 4 digits. Type x (final character) in upper- or lowercase.	0098-3527 sn:0098-3527

Derived search

Command line only. You must enter a derived search from the command line.
Index labels are optional for derived searches. For a derived corporate/conference/geographic name search, either the index label (cd) or the equal sign (=) is required.
Equal sign (=). For a derived corporate, conference, or geographic name, you can begin the search key with an equal sign (=) in place of the index label cd. You can use either the equal sign or the index label, but one or the other is required to distinguish a corporate/conference/geographic name search from a personal name search.
Circumflex (^) for precision. In a derived personal name, corporate/conference name, or topical subject search, you can enter a circumflex in the second or subsequent portions of the search key. This improves precision by indicating that the segment contains no additional characters. For example, to search for the corporate name Library of Congress, use a circumflex in the second segment: cd:libr,of^,c.
Segment with fewer than maximum characters (no circumflex). In a derived personal name, corporate/conference name, or topical subject search, you can enter fewer characters than the maximum allowed, without using the circumflex. This expands the search; the system assumes that the segment may contain any additional characters or no additional characters. For example, the personal name search smit,b, retrieves records for the surname Smith with any forename beginning with B.
In a derived title search, the system treats an incomplete segment as if it contained a circumflex; as a result, the system retrieves only records matching the characters you enter.
No wildcards for derived searches. You cannot use truncation (using the asterisk) or character masking (using the question mark or number sign) in a derived search.

Derived search	Label	Format	Example
Personal Name	pd	4,3,1	Mozart, Wolfgang Amadeus pd:moza,wol,a
Corporate or Conference or Geographic Name	cd	=4,3,1 or cd:4,3,1	American Chemical Society cd:chem,soc, =chem,soc,
Title	td	3,2,2,1	Journal of Chemical Education jou,of,ch,e
Subject	sd	5,3	civil rights civil,rig

Stopwords (derived corporate or conference name)

Omit stopwords in corporate or conference names if they appear in the first position. Include stopwords that follow a significant term. For example, to search for Royal Ontario Museum, include all words in the search cd:roya,ont,m. To search for Conference on Urban Planning Information Systems, both conference and on are stopwords. The derived search would be: cd:urba,pla,i.
If all words in a corporate or conference name are stopwords, ignore the stopword list and include all words in the search key.

&	Division	Missouri	Subcommittee
a	East	Montana	Symposium
A.	Federal	National	Tennessee
Alabama	Florida	Nebraska	Texas
Alaska	for	Nevada	the
American	France	New Hampshire	U.N.
an	Georgia	New Jersey	U. N.
and	Great Britain	New Mexico	United Nations
Arizona	Hawaii	New York	United States
Arkansas	House	North	University
Association	Idaho	North Carolina	U.S
at	Illinois	North Dakota	U. S.
Australia	in	of	Utah
Board	India	Office	Vermont
Bureau	Indiana	Ohio	Virginia
California	Institute	Oklahoma	Washington
Canada	Institution	on	West
College	International	Oregon	West Virginia
Colloquium	Iowa	Organization	Wisconsin
Colorado	Joint	Parliament	Workshop
Commission	Kansas	Pennsylvania	Wyoming
Committee	Kentucky	Rhode Island
Commonwealth	Louisiana	School
Conference	Maine	Seminar
Congress	Maryland	Senate
Connecticut	Massachusetts	Society
Council	Meeting	South
Delaware	Michigan	South Carolina
Department	Minnesota	South Dakota
Dept.	Mississippi	State

Indexes and indexed fields for searching

For a list of indexes, index labels, and fields/subfields included in each index, see "Indexes and indexed fields (Authority File)."

Search history: view and use previous searches

Use the Search History window to
- View your previous 10 Authority File searches, including any command line or keyword search.
- Repeat a previous search.
- Revise a previous search.
Previous searches are associated with your authorization number and are retained between Connexion sessions. The search history is not cleared when you log off.

Search History function	How to use
Open Search History window	At the Search Authorities screen, Click Search History or press <Alt><=>.
List of previous searches	For each listed search, the window shows Search type: Authorities command line or keyword. Timestamp: date and time the search was performed. Search criteria: all search elements, including command line queries, keywords, indexes, and operators.
Repeat a previous search	Click Repeat. Connexion immediately performs the selected search.
Revise a previous search	Click Revise. Results Connexion displays the Search Authorities screen. The selected search is ready for revision.
Clear search history	Click Clear History (at the top of the Search History window).
Close the Search History window	Click Close (at the top of the Search History window).

Find specific record when search results exceed 1500 records (cannot sort by main entry)

Problem

Your search in the Authority File retrieves more than 1500 records.
Because the Sort by Main Entry action is not available for result sets that exceed 1500 records, you have difficulty finding the specific record you need.
You cannot limit the search effectively. For example, you need a record for a broader heading found in many records for specific headings.

Solutions

1. Browse the Authority File using the term and index you searched

In the Browse Results list, click the term to view a list of the records retrieved. This may produce a smaller result set that you can sort by main entry.

2. Enter the heading in a bibliographic record and then control the heading

In the bibliographic record you are editing, switch to a template edit view (MARC or Dublin Core). Add the appropriate type of heading field. Then type the desired heading in the text box for the added field. In the Functions list for the new field, click Control Heading.
The authority control function either links the heading to the appropriate authority record or returns a list of records that completely or partially match the heading you entered.
To view the authority record(s), click the hyperlinked heading(s).

Example

Search or browse to find a record for the corporate name heading Catholic Church. You retrieve over 4000 records (search) or over 1200 records (browse).
Add a 110 or 710 field (Dublin Core: Creator.nameCorporate or Contributor.nameCorporate) to a record, enter the text Catholic Church in the text box, and select Control in the Functions list. The system retrieves 2 records that exactly match the heading you entered.

Pattern headings for LC subjects

The Library of Congress has identified headings that are representative of particular categories. Such headings are called pattern headings. These representative headings in each category are established in the Subject Authority File with a set of subdivisions appropriate for use with other headings belonging to the category. The following table lists those pattern headings identified by LC. Pattern headings can help you

Verify subject headings in an existing bibliographic record.
Select appropriate subject headings to include in an original record.

Subject Field	Category	Pattern Heading(s)
Religion	Religious and monastic orders	Jesuits
	Religions	Buddhism
	Christian denominations	Catholic Church
	Sacred works (including parts)	Bible
History and Geography	Colonies of individual countries	Great Britain $x Colonies
	Legislative bodies (including individual chambers)	United States. $b Congress
	Military services (including armies, navies, marines, etc.)	United States $x Armed Forces United States. $b Air Force United States. $b Army United States. $b Marine Corps United States. $b Navy
	Wars	World War, 1939-1945 United States $x History $y Civil War, 1861-1865
Social Sciences	Industries	Construction industry Retail trade
	Types of educational institutions	Universities and colleges
	Individual educational institutions	Harvard University
	Legal topics	Labor laws and legislation
The Arts	Art	Art, Italian Art, Chinese Art, Japanese Art, Korean
	Groups of literary authors (including authors, poets, dramatists, etc.)	Authors, English
	Literary works entered under author	Shakespeare, William, $d 1564-1616. $t Hamlet
	Literary works entered under title	Beowulf
	Languages and groups of languages	English language French language Romance languages
	Literatures (including individual genres)	English literature
	Musical compositions	Operas
	Musical instruments	Clarinet Piano
Science and Technology	Land vehicles	Automobiles
	Materials	Concrete Metals
	Chemicals	Copper Insulin
	Organs and regions of the body	Heart Foot
	Diseases	Cancer Tuberculosis
	Plants and crops	Corn
	Animals	Fishes Cattle

Browse the Authority File

Why browse for authority records?

When creating or modifying a bibliographic record, determine the correct forms for names of persons, organizations, conferences, and/or titles associated with the resource you are describing.
When adding subject headings to a bibliographic record, authority records enable you to determine established headings.

About the Connexion Authority File

The Library of Congress and NACO libraries create and maintain the authority records.
Records are stored and displayed in the MARC21 authorities format.

Browsing methods available

You can browse (phrase search) the Authority File in two ways:
Browse Authorities screen: Omit scan command and index label. Type the phrase in the Browse for text box and select an index from the list. Click Browse. On this screen, you can also specify a Root Index position and an Expanded Index term as a shortcut to the desired records.
Search Authorities screen, command line: In the Search for text box, type scan or sca and then type an index label, a colon, and the phrase to search. Click Search. Browsing from the command line does not allow you to include a Root Index position or an Expanded Index term in the browse query.

Note on browsing

Most search techniques (truncation, character masking, Boolean operators, grouping) cannot be used when browsing. The browse term you enter is matched- character by character, from left to right- against the characters of the terms in the browse index you select.

Browse Authorities screen

	Action
1	On the Authorities tab, under Browse Options, click Authority File. Or Press <Ctrl><J>.
2	At the Browse Authorities screen, select an index. In the Browse for box, type the first words of a heading as a browse term. Omit initial articles. When browsing for a personal name, if you enter the name in inverted order, include the comma after the surname. Example:mozart, wolfgang. You can enter diacritics and/or subfield codes; the system removes them before processing the browse query.
3	(Optional) Specify Root Index position. Including a position number allows you to bypass the Root Results screen and immediately view the Expanded Results screen showing the desired term and the associated portion of the Expanded Index (subheadings). To automatically select a position on the Root Results, type the position number (1 through 20) in the Select Root text box. Result The system automatically selects the specified position within the Root Results and immediately displays the Expanded Results screen. The selected heading appears at position 9, followed by the beginning of the Expanded Index (subheadings) for that heading. Note: For closest match specify 9. The closest match to the term you enter in the Browse for text box is located at position 9.
4	(Optional) Specify Expanded Index term. If you specify a Root Index position number, you can also specify a term within the Expanded Index for that Root Index term (heading). Including an Expanded Index term allows you to bypass the Root Results screen and immediately view the Expanded Results screen showing the desired portion of the Expanded Index (subheadings). In the Expanded Term text box, type the first word(s) of the subheading you want to locate. Result The system automatically selects the specified position within the Root Results and then scans the Expanded Index (subheadings) for that heading to locate the specified expanded--index term. The system displays the Expanded Results screen showing the root heading followed by the portion of the Expanded Index (subheadings) beginning with the specified term.
5	Check your browse term(s) for errors such as misspellings. Clear text of browse phrase To clear the Browse for text box, click Clear Search.
6	Click Browse or press <Enter>. Note: Browsed phrase retained Your browsed phrase remains in the Browse for text box until you revise the phrase or click Clear Search.

Search history: view and use previous browse queries

Use the Search History window to
- View your previous 10 Authority File browse queries (phrase searches) performed from the Browse Authorities screen
- Repeat a previous browse query
- Revise a previous browse query
The Search History for the Browse Authorities screen does not include phrase searches entered in the Command Line area on the Search Authorities screen.
Previous browse queries are associated with your authorization number and are retained between Connexion sessions. The search history is not cleared when you log off.

Search History function	How to use
Open Search History window	At the Browse Authorities screen, Click Search History or press <Alt><=>.
List of previous browse queries	For each listed browse query, the window shows Search type: Browse Authorities Timestamp: date and time the search was performed Browse query: word(s) entered in the Browse for text box and the selected index
Repeat a previous browse	Click Repeat. Connexion immediately performs the selected browse query.
Revise a previous browse	Click Revise. Results Connexion displays the Browse Authorities screen. The selected browse query is ready for revision.
Clear search history	Click Clear History (at the top of the Search History window).
Close the Search History window	Click Close (at the top of the Search History window).

Search Authorities screen (command line search)

Search History. Phrase searches from the Command Line area of the Search Authorities screen are included in the Search History list. for the Search Authorities screen. To view, repeat, or revise previous searches, click Search History or press <Alt><=>.

	Action
1	On the Authorities tab, click Search. Or Press <Ctrl><Shift><J>. The Search Authorities screen appears. The cursor is in the Command Line Search text box.
2	In the Command Line Search text box, Type the scan command and index label: Type scan or sca. Type the index label, followed by a colon. Type the exact word(s) of the phrase you want, beginning with the first word. Omit initial articles. When browsing for a personal name, if you enter the name in inverted order, include the comma after the surname. Example:mozart, wolfgang. You can enter diacritics and/or subfield codes; the system removes them before processing the search.
3	Check your browse term(s) for errors such as misspellings. Clear search To clear the Search for text box, click Clear Search.
4	When finished constructing the phrase, click Search or press <Enter>. Note: The command line search statement is retained Your search statement remains in the Search for text box until you revise the search or click Clear Search.

Indexes and indexed fields for browsing

For a list of indexes, index labels, and fields/subfields included in each index, see "Indexes and indexed fields (Authority File)."

Pattern headings for LC subjects

Verify subject headings in an existing bibliographic record
Select appropriate subject headings to include in an original record

Subject Field	Category	Pattern Heading(s)
Religion	Religious and monastic orders	Jesuits
	Religions	Buddhism
	Christian denominations	Catholic Church
	Sacred works (including parts)	Bible
History and Geography	Colonies of individual countries	Great Britain $x Colonies
	Legislative bodies (including individual chambers)	United States. $b Congress
	Military services (including armies, navies, marines, etc.)	United States $x Armed Forces United States. $b Air Force United States. $b Army United States. $b Marine Corps United States. $b Navy
	Wars	World War, 1939-1945 United States $x History $y Civil War, 1861-1865
Social Sciences	Industries	Construction industry Retail trade
	Types of educational institutions	Universities and colleges
	Individual educational institutions	Harvard University
	Legal topics	Labor laws and legislation
The Arts	Art	Art, Italian Art, Chinese Art, Japanese Art, Korean
	Groups of literary authors (including authors, poets, dramatists, etc.)	Authors, English
	Literary works entered under author	Shakespeare, William, $d 1564-1616. $t Hamlet
	Literary works entered under title	Beowulf
	Languages and groups of languages	English language French language Romance languages
	Literatures (including individual genres)	English literature
	Musical compositions	Operas
	Musical instruments	Clarinet Piano
Science and Technology	Land vehicles	Automobiles
	Materials	Concrete Metals
	Chemicals	Copper Insulin
	Organs and regions of the body	Heart Foot
	Diseases	Cancer Tuberculosis
	Plants and crops	Corn
	Animals	Fishes Cattle

Indexes and indexed fields

About Authority File indexing

The same text indexes, with similar coverage of fields and subfields, are available for either keyword searching or browsing. You cannot browse numeric indexes.
Indexing differs for derived searching.
How you specify the desired index varies with the search or browse method you use. When searching or browsing from the command line, you must type the index label followed by a colon (:). When using the keyword search form or the Browse Authority File screen, select the index from the list provided.
For searching, the fields below are indexed by individual word.
For browsing, the fields below are indexed by phrase. Browsing matches your term or phrase character by character, from left to right, against characters in the index you specify.

Numeric indexes (not available for browsing)

Index (label)	MARC Fields Indexed	MARC Subfields Indexed
ARN (an:)	001
LCCN (ln:)	010 667 Note: Indexing field 667 helps catalogers identify the history of personal names previously in undifferentiated authority records and subsequently established as separate authority records, using unique control numbers. The index only retrieves records with 667 fields that contain the word "undifferentiated." No textual data in the 667 field is indexed. The system does not compare or verify LCCNs in field 667 with LCCNs in field 010.	a z a
ISBN (bn:)	020	a z
ISSN (in:)	022	a y z

Text indexes (keyword search or browse)

Index (label)	MARC Fields Indexed	MARC Subfields Indexed (Keyword Search)	MARC Subfields Indexed (Browse —Root)
Personal Names (pn:)	100, 400, 500, 700	a b c d e j q	a b c d e j q
Corporate or Conference Names (cn: or co:)	110, 410, 510, 710	a b c d e n	a b c d e n
	111, 411, 511, 711	a c d e j n q	a b d e j n q
	151, 451, 551, 751	a	a
Genre ge:	155, 455, 555, 755	a v x y z	a
LC Names (nw:) (n* -prefixed LCCNs only) [1]	100, 400, 500, 700	a b c d f g h j k l m n o p q r s t	a b c d e j q
	110, 410, 510, 710	a b c d f g h k l m n o p r s t	a b c d e n
	111, 411, 511, 711	a c d e f g h j k l n p q s t	a c d e j n q
	151, 451, 551, 751	a	a
	130, 430, 530, 730	a d f g h k l m n o p r s t	a d g h k m n o p r s t
Titles (ti:) [2]	100, 400, 500, 700	f g h k l m n o p r s t	f g h k l m n o p r s t
	110, 410, 510, 710	d f g h k l m n o p r s t	d f g h k l m n o p r s t
	111, 411, 511, 711	d f g h k l n p s t	d f g h k l n p s t
	130, 430, 530, 730	a d f g h k l m n o p r s t	a d f g h k l m n o p r s t
	031	d t	d t
Geographic Names (gg:)	151, 451, 551, 751	a v x y z	a
Geographic Names (gg:)	181, 481, 581, 781	v x y z	Not applicable
Musical Incipits (mi:) (Browse only)	031	Not indexed for searching	p
Cartographic Data (cm:) (Search only)	034	d e f g z	Not indexed for browsing
Subdivision Headings (sb:)	180, 480, 580, 780	v x y z	v x y z
	181, 481, 581, 781	v x y z	v x y z
	182, 482, 582, 782	v x y z	v x y z
	185, 485, 585, 785	v x y z	v x y z
Topicals (sp:)	150, 450, 550, 750	a b v x y z	a b
LCSH (su:) [3]	100, 400, 500, 700	a b c d e f g h j k l m n o p q r s v x y z	a b c d f g h j k l m n o p q r s t
	110, 410, 510, 710	a b c d e f g h j k l m n o p q r s v x y z	a b c d f g h j k l m n o p r s t
	111, 411, 511, 711	a b c d e f g h j k l m n o p q r s v x y z	a b c d e f g h j k l n p q s t
	130, 430, 530, 730	a b c d e f g h j k l m n o p q r s v x y z	a d f g h k l m n o p r s t
	150, 450, 550, 750	a b v x y z	a b
	151, 451, 551, 751	a v x y z	a
	155, 455, 555, 755	a v x y z	a
	180, 480, 580, 780	v x y z	v x y z
	181, 481, 581, 781	v x y z	v x y z
	182, 482, 582, 782	v x y z	v x y z
	185, 485, 585, 785	v x y z	v x y z
Children's Subjects (sj:)	100, 400, 500, 700	a b c d e f g h j k l m n o p q r s t v x y z	a b c d f g h j k l m n o p q r s t
	110, 410, 510, 710	a b c d e f g h j k l m n o p q r s t v x y z	a b c d f g h j k l m n o p r s t
	111, 411, 511, 711	a b c d e f g h j k l m n o p q r s t v x y z	a b c d f g h j k l m n p q s t
	130, 430, 530, 730	a b c d e f g h j k l m n o p q r s t v x y z	a d f g h k l m n o p r s t
	150, 450, 550, 750	a b v x y z	a b
	151, 451, 551, 751	a v x y z	a
	180, 480, 580, 780	v x y z	v x y z
	181, 481, 581, 781	v x y z	v x y z
	182, 482, 582, 782	v x y z	v x y z
	185, 485, 585, 785	v x y z	v x y z
Table Notes	[1] Includes all Library of Congress authority records with 010 prefix starting with n (n, nb, no, or nr). [2]* Subfields from the index for title name headings from tags x00, x10, x11 are the reverse of subfields indexed for personal, corporate, and conference name indexes. [3] This index contains all Library of Congress authority records with the 010 prefixes sh and sj, as well as x51 headings from authority records with the 010 prefix starting with *n (n, nb, no, or nr).

Indexes for derived searching

Index (label)	MARC Fields Indexed	MARC Subfields Indexed
Personal Name (pd:) 4,3,1	100, 400, 500, 700	a
Corporate, Conference, or Geographic Name (cd:) =4,3,1	110, 410, 510, 710	a b
	111, 411, 511, 711	a e
	151, 451, 551, 751, 781	a v x y z
Title (td:) 3,2,2,1	100, 400, 500, 700	f g h k l m n o p r s t
	110, 410, 510, 710	d f g h k l m n o p r s t
	111, 411, 511, 711	d f g h k l n p s t
	130, 430, 530, 730	a d f g h k l m n o p r s t
Subject (sd:) 5,3	150, 450, 550, 750	a v x y z
	155, 455, 555, 755	a v x y z
	180, 480, 580, 780	v x y z
	181, 481, 581, 781	v x y z
	182, 482, 582, 782	v x y z
	185, 485, 585, 785	v x y z

Authority History indexes (search and browse)

Search indexes

To search the Authority History database via Connexion browser, on the Authorities tab, under Search Options, click Authority History.
To search the Authority History database via Connexion client, click Authorities > Search > LC Names and Subjects History.
The Search Authority History screen supports two search methods:
- In the Command Line search area, type the index label followed by a colon, and then the search term.
- In the guided (Keyword/Numeric) search area, type term(s) in one or more text boxes; for each term, select the desired index from the list.

Note: Status index: qualifier only. Use the Status index only as a qualifier or restrictor combined with a search in another Authority History index. If you start a search with only a status value, Connexion redisplays the search screen with a message reminding you to combine status criteria with another search term.

Index (label)	MARC Fields Indexed	MARC Subfields Indexed
Status (ahs:)*	Leader byte 06	N/A
ARN (an:)	001	N/A
LCCN Words (ln:)	010	a z
Heading Words (me:)	100, 400 110, 410 111, 411 130, 430 150, 450 151, 451 155, 455 180, 480 181, 481 182, 482 185, 485	a b c d e f g h j k l m n o p q r s t v x y z
Table Note	Status index. You can qualify an Authority History search by specifying a status for the retrieved records. Use the Status index as a search qualifier only. Always combine a Status search term with a search term in another Authority History index. If you search the Status index only, you receive an error message. Status codes. Status codes c, d, and n are supplied by Library of Congress. Connexion supplies the code p when a record is manually deleted by OCLC staff. Possible status codes are: c - Corrected or revised record n - New record d - Deleted record p - Record manually deleted

Browse indexes

To browse the Authority History database via Connexion browser, on the Authorities tab, under Browse Options, click Authority History.
To browse the Authority History database via Connexion client, click Authorities > Browse > LC Names and Subjects History.
You can also browse from the Search Authority History screen. In the Command Line area, type the Scan command (sca), a space, the index label (including a colon ) for the desired browse index, and then the browse term.

About Authority History browse results. Authority History browse results differ in functionality and appearance from results for browsing the Authority File:

Root and expanded indexing is not supported in the Authority History database.
Headings in browse results are displayed in all-uppercase text.

Index (label)	MARC Fields Indexed	MARC Subfields Indexed
ARN (an:)	001	N/A
LCCN Phrase (ln:)	010	a z
Heading Phrase (me:)	100, 400	a b c d e f g h j k l m n o p q r s t v x y z
	110, 410	a b c d e f g h k l n o p s t v x yz
	130, 430	a d f g h k l m n o p r s t v x y z
	150, 450 151, 451	a b v x y z
	155, 455	a v x y z
	180, 480 181, 481 182, 482 185, 485	v x y z

View authority search results

No authority records found

If your search retrieves no records,

The system displays the following message at the top of the Search Authorities screen: No Records Found for your Search. Please change or simplify your search and try again.
The search entry form contains the search criteria you used.

1 authority record found

If your search retrieves 1 authority record, the system displays the record (without the results list).

Up to 10 authority records

If your search retrieves 1-10 authority records,

The system displays the message: [number] records found searching for [search query] in Authorities
The results screen lists brief entries for all retrieved authority records. Each entry contains the heading and cross reference forms (if you choose to show See and/or See Also references in results).
Brief entries are sorted alphabetically by main entry.

11+ authority records

If your search retrieves 11 or more authority records

The system displays the message: [number] records found searching for [search query] in Authorities
The results screen lists brief entries for the first 10 retrieved records. Each entry contains the heading and cross reference forms (if you choose to show See and/or See Also references in results).
The View List box lets you type an entry number to display 10 entries beginning with that number. The left and right arrow buttons let you move forward or back 10 entries. The View Record box lets you type an entry number to view the full record.
Brief entries are sorted alphabetically by main entry.

Search query display

At the top of the first screen of search results, the system displays a message that includes the number of authority records retrieved and the query that produced the results. The message provides feedback that lets you see how the system interpreted your search criteria.

Example: pn: Pope and ti: criticism

The display shows:

Each term preceded by a 2-letter index label identifying the index in which it was searched. Example: pn: Alexander
Term groups (terms entered in the same box on the search form and searched in the same index). Example: pn: Alexander and pn: Pope

Use this displayed query to

Diagnose causes for unsatisfactory search results.
Refine your search to improve results.

Use authority search results

Move through search results (View List and View Record jump bar)

The View List jump bar appears at the top and bottom of each screen of the results list.
The View Record jump bar appears at the top and bottom of each screen of the results list.

Action	How to
Move forward 10 entries	Click the right arrow button (right of View List box).
Move back 10 entries	Click the left arrow button (left of View List box).
View 10 brief entries beginning with specific entry	Type an entry number in the View List box and press <Enter>.
View a specific record	Click the hyperlinked entry number for the record you want to view. Or Type an entry number in the View Record box and press <Enter>.
Return to Root Results or Expanded Results	Click the Root Results or Expanded Results button at the top or bottom of the Search Results screen. Or On the navigation bar, open the Browse Options list and click Root Results or Expanded Results.

Move between records (View Record jump bar)

The View Record jump bar appears at the top and bottom of each record screen.
The record position indicator (Record _ of _) appears at the top and bottom of each record screen. As you move through the records, the indicator changes to reflect your current position in the results list.

Action	How to
View next record in list	Click the right arrow button (right of View Record box).
View previous record in list	Click the left arrow button (left of View Record box).
View a specific record	Type an entry number in the View Record box and press <Enter>.
Return to search results	Click the Search Results button at the top or bottom of the record screen.
Return to Root Results or Expanded Results	Click the Root Results or Expanded Results button at the top or bottom of the record screen. Or On the navigation bar, open the Browse Options list and click Root Results or Expanded Results.

Actions on search results list

You can take the following actions on retrieved records by using the Action/Sort list (top right corner of results screen).
Not available for browse results.

Action	Result
Flag All on Page	A check mark appears in the box to the left of each entry on this page of the result set.
Clear Flags on Page	Check marks removed from all entries on this page of the results list.
Flag All Records Retrieved	A check mark appears in the box to the left of each entry in the result set (all pages).
Clear All Flags	Check marks removed from all entries on all pages of the results list.
Hide See References (See references displayed)	Hide See reference tracings (4xx fields) for each main entry in the results list.
Hide See Also References (See Also references displayed)	Hide See Also reference tracings (5xx fields) for each main entry in the results list.
Show See References (See references hidden)	Show See reference tracings (4xx fields) for each main entry in the results list.
Show See Also References (See Also references hidden)	Show See Also reference tracings (5xx fields) for each main entry in the results list.

View authority record from brief list

Action

View record in edit mode. Click the hyperlinked entry number for the record you want to view.

Lock and view master record. Click the Lock button in front of the entry for the record you want to view.

View record in display mode. Click the Display button in front of the entry for the record you want to view.

Show or hide record viewing buttons

Record viewing buttons are hidden by default. Press <Alt><Y> to show the buttons to the left of each entry.
Click the Display button to view a record in display mode (read-only).
Click the Lock button to lock the master record and open it in edit mode.

Action

Press <Alt><Y> to insert a Display button and a Lock button to the left of each brief entry.

To hide the buttons, press <Alt><Y> again.

Print screen of results list

	Action
1	If the list includes multiple screens, jump to the screen you want to print.
2	Click once in the frame that contains the results list.
3	In your browser, on the File menu, click Print.
4	In the Print dialog box click OK or press <Enter>.

Flag authority records

Single records	All on a page	Result set
Click the open box in front of the record you want to flag.	On the Action/Sort list, click Flag All on Page.	On the Action/Sort list, click Flag All Records Retrieved.
A check mark appears in front of each brief entry you have flagged.

Unflag authority records

Single records	All on a page	Result set
Click the check mark in front of the record you want to unflag.	On the Action/Sort list, click Clear Flags on Page.	On the Action/Sort list, click Clear All Flags.
An open box appears in front of each unflagged brief entry.

Actions on flagged records

Note: Actions on more than 100 records

Export Connexion can export more than 100 records at a time. After exporting 100 records, the system asks you to confirm that you want to continue.

Action	How to
Flag all items on the current page	On the Action/Sort list, click Flag All on Page. A check mark appears in the box to the left of each entry on this page of the record list.
Remove flags from all items on the current page	On the Action/Sort list, click Clear Flags on Page. Check marks disappear from all entries on this page of the record list.
Clear flags from all items (all pages of the list)	On the Action/Sort list, click Clear All Flags. Check marks are removed from entries on all pages of the record list.
Export the records currently flagged	On the Action/Sort list, click Export Flagged Records. At the Export Flagged Records screen, select the export format. Click MARC.

Use Authority File browse results (root and expanded)

View Root Results or Expanded Results

Results display

Description

Root Results

Lists headings from the section of the specified index containing the browsed term or the term that matches it most closely.
Each screen of results lists 20 terms from the Root Index.
Each entry number (R1-R20) is hyperlinked to one or more authority records.
The number of matching records for each term appears in the right column.
When you select an entry number associated with only a single record, the system searches for the term in the Authority File and displays the record.
When you select an entry number associated with 2 or more records, the system scans the section of the index containing subheadings for that heading and displays an Expanded Results screen.
A jump bar at the top and bottom of the screen provides the following navigation aids: a View Expanded text box (contains entry number 9 by default), View List arrows (view the previous or next screen of results), and Expanded Term text box (specify term to locate within Expanded Results).

Expanded Results

Shows the selected Root Index term (heading) at the top of the list.
Lists subheadings from the Expanded Index associated with the selected Root Index heading.
If you specify an expanded term, that term or its closest match appears in position E9. Otherwise, the screen shows the beginning of the subheadings for the Root Index term.
Each screen of results lists 20 terms from the Expanded Index.
Each entry number (E1-E20) is hyperlinked to one or more authority records.
The number of matching records for each term appears in the right column.
When you select an entry number associated with only a single record, the system searches for the term in the Authority File and displays the record.
When you select an entry number associated with 2 or more records, the system searches for the term and displays a Search Results screen.
A jump bar at the top and bottom of the screen provides the following navigation aids: a View Record text box (contains entry number 9 by default), View List arrows (view the previous or next screen of results), and Expanded Term text box (specify term to locate within Expanded Results).

Expanded Index subheadings for Root Index headings

Root Index heading	Expanded Index subheadings
Personal Names	Title subdivisions
Corporate or Conference Names	Title subdivisions
Geographic Names	Title subdivisions
LC Names (nw)	Title subdivisions
Titles	Personal, corporate, conference, or geographic name subdivisions
LCSH	Subject subdivisions
Subdivision Headings	Subject subdivisions
Topicals	Subject subdivisions
Children's Subjects	Subject subdivisions

Use Root Results

Action	How to
View next screen	At the top or bottom of the screen, click the View List arrow that points to the right.
View previous screen	At the top or bottom of the screen, click the View List arrow that points to the left.
View record containing Root Index term (term with 1 associated record)	To select a Root Index entry that retrieves a single authority record, click the hyperlinked entry number or type the number in the View Expanded box and press <Enter>. The system displays the authority record.
View Expanded Index (subheadings) for a Root Index term (term with multiple associated records)	To select a Root Index entry that retrieves multiple authority records, click the hyperlinked entry number or type the number in the View Expanded box and press <Enter>. The system displays an Expanded Result screen that shows the Root Index term and its associated subheadings.
Jump to an Expanded Index term	In the View Expanded box, type the entry number (R1-R20) for the heading (Root Index term) for which you want to locate a subheading (Expanded Index term). In the Expanded Term box, type the term you want to locate within the Expanded Index. Press <Enter>. The system redisplays the Expanded Results. The term you specify, or its closest match, appears at position E9.
Return to Root Results	Click the Root Results button at the top or bottom of the Expanded Results screen or the record screen. Or On the Authorities tab, under Browse Options, Authority File, click Root Results.

Use Expanded Results

Action	How to
View next screen	At the top or bottom of the screen, click the View List arrow that points to the right.
View previous screen	At the top or bottom of the screen, click the View List arrow that points to the left.
View record(s) containing Expanded Index term	Click the hyperlinked entry number or type the number in the View Record box and press <Enter>. The system displays the authority record or a list of records (Search Results screen).
Jump to an Expanded Index term	In the Expanded Term box, type the term you want to locate within the Expanded Index. Press <Enter>. The system redisplays the Expanded Results. The term you specify, or its closest match, appears at position E9.
Return to Expanded Results	Click the Expanded Results button at the top or bottom of the Search Results screen or the record screen. Or On the Authorities tab, under Browse Options, Authority File, click Expanded Results.
Return to Search Results	Click the Search Results button at the top or bottom of the record screen Or On the Authorities tab, under Search Options, Authority File, click Search Results.

Move through Search Results (View List and View Record jump bar)

The View List jump bar appears at the top and bottom of each screen of the results list.
The View Record jump bar appears at the top and bottom of each screen of the results list.

Action	How to
Move forward 10 entries in list	Click the right arrow button (right of View List box).
Move back 10 entries in list	Click the left arrow button (left of View List box).
View 10 brief entries beginning with specific entry	Type an entry number in the View List box and press <Enter>. Note: For brief results retrieved by selecting an item on a group results display, the brief entries are numbered sequentially from the first record in the first group.
View a specific record	Click the hyperlinked entry number for the record you want to view. Or Type an entry number in the View Record box and press <Enter>.

Move between records (View Record jump bar)

The View Record jump bar appears at the top and bottom of each record screen.
The record position indicator (Record _ of _) appears at the top and bottom of each record screen. As you move through the records, the indicator changes to reflect your current position in the results list.

Action	How to
View next record in list	Click the right arrow button (right of View Record box).
View previous record in list	Click the left arrow button (left of View Record box).
View a specific record	Type an entry number in the View Record box and press <Enter>.
Return to results	Click the Search Results or Expanded Results or Root Results button at the top or bottom of the record screen.

View authority record

Results display

Actions

Root Results

View record in edit mode. Click the hyperlinked entry number (R1-R20) for the record you want to view.

Expanded Results

View record in edit mode. Click the hyperlinked entry number (E1-E20) for the record you want to view.

Search Results

View record in edit mode. Click the hyperlinked entry number for the record you want to view.

Lock and view master record. Click the Lock button in front of the entry for the record you want to view.

View record in display mode. Click the Display button in front of the entry for the record you want to view.

Anomalies in Authority File browse results: misleading subfield codes

Occasionally, a heading appears in browse results with a subfield code that is misleading. However, when you view the record, the subfield code that appears in the results list is not present in the record.

An example of this is browsing the LCSH index for the heading Noah's Ark. In the root index, the heading is presented as $t Noah's Ark; however, when you view the record, the heading Noah's Ark appears in $a, not $t. There is only a single subject authority record for Noah's ark, in which the heading appears only in $a (LCCN sh 85092133). But the text Noah's ark appears in $t in 9 other authority records.

This is a known side effect of storing the data required to support displaying subfield delimiters and codes in the root and expanded index lists.

To optimize data storage and retrieval, the system indexes all instances of a given heading phrase as a single index entry. The index contains the text of each unique heading only once; the stored text includes the subfield value associated with the first occurrence of a heading encountered during indexing.

This means that the heading and subfield value represented in the index may not reflect the subfield in which particular instances of the heading appear in authority records. The browse results (root or expanded index list) show the heading as stored in the index. However, for each occurrence of the same heading, the index includes data needed to retrieve the correct record for the user's query.

In the case of Noah's ark, the first instance of the phrase Noah's ark was encountered in $t. Therefore, that subfield code appears with the heading text in the Root Index list, but the system retrieves the correct authority record for the LCSH browse query, with the heading in $a.

Show or hide record viewing buttons (search results lists)

Record viewing buttons are hidden by default. Press <Alt><Y> to show the buttons to the left of each entry.
Click the Display button to view a record in display mode (read-only).
Click the Lock button to lock the master record and open it in edit mode.

Action

Press <Alt><Y> to insert a Display button and a Lock button to the left of each brief entry.

To hide the buttons, press <Alt><Y> again.

Return to Search Results, Expanded Results or Root Results

Action
Click the Root Results or Expanded Results or Search Results button at the top or bottom of the record screen. Or On the Authorities tab, under Browse Options, click Root Results or Expanded Results . To return to search results, under Search Options, Authority File, click Search Results.

Print screens of browse results or search results

	Action
1	In the results display, go to the screen you want to print.
2	Click once in the frame that contains the results list.
3	In your browser, on the File menu, click Print or on the toolbar click the Print button.
4	In the Print dialog box, click OK or press <Enter>.

Show Flagged Authority records screen

Use flagged authority records screen

Review a list of brief entries for authority records flagged during the current session.
Clear flags from all or selected records.
Export the flagged records.
Display a full authority record.
Edit an authority record.

Actions on list of flagged records

Note: Actions on more than 100 records

Export Connexion can export more than 100 records at a time. After exporting 100 records, the system asks you to confirm that you want to continue.

Action	How to
Flag all items on the current page	On the Action/Sort list, click Flag All on Page. A check mark appears in the box to the left of each entry on this page of the record list.
Remove flags from all items on the current page	On the Action/Sort list, click Clear Flags on Page. Check marks disappear from all entries on this page of the record list.
Clear flags from all items (all pages of the list)	On the Action/Sort list, click Clear All Flags. Check marks are removed from entries on all pages of the record list.
Export the records currently flagged	On the Action/Sort list, click Export Flagged Records. At the Export Flagged Records screen, select the export format. Click MARC.
Move forward 10 entries	Click the right arrow button (right of View List box).
Move back 10 entries	Click the left arrow button (left of View List box).
View 10 entries beginning with specific entry	Type an entry number in the View List box and press <Enter>.
View a specific record	Click the hyperlinked entry number for the record you want to view. Or Type an entry number in the View Record box and press <Enter>.
Print a page of the list of flagged records	Jump to the screen you want to print. In your browser, on the File menu click Print. Or On the toolbar click the Print button.

View full authority record from brief list

Action

View record in edit mode. Click the hyperlinked entry number for the record you want to view.

Lock and view master record. Click the Lock button in front of the entry for the record you want to view.

View record in display mode. Click the Display button in front of the entry for the record you want to view.

Show or hide record viewing buttons

Record viewing buttons are hidden by default. Press <Alt><Y> to show the buttons to the left of each entry.
Click the Display button to view a record in display mode (read-only).
Click the Lock button to lock the master record and open it in edit mode.

Action

Press <Alt><Y> to insert a Display button and a Lock button to the left of each brief entry.

To hide the buttons, press <Alt><Y> again.

Move between records (View Record jump bar)

The View Record jump bar appears at the top and bottom of each record screen.
The record position indicator (Record _ of _) appears at the top and bottom of each record screen. As you move through the records, the indicator changes to reflect your current position in the results list.

Action	How to
View next record in list	Click the right arrow button (right of View Record box).
View previous record in list	Click the left arrow button (left of View Record box).
View a specific record	Type an entry number in the View Record box and press <Enter>.
Return to flagged records list	Click the Flagged Records button at the top or bottom of the record screen.

No flagged authority records

If you have not flagged authority records during the current session, the system displays the message

You currently have no Flagged Records

If you flagged records and then exited the system or closed your browser without exiting the system properly, the system unflagged the records when your session ended. You must reflag the records to work with them in your current session.

Search the Authority History database

Search methods

When you are not accessing the Authority History database from an open distributed authority record, retrieve the records you need using a command line or guided searching.

Command line search. Enter a keyword or numeric search; type all terms, index labels, and operators using correct syntax.
Guided search. In the Keyword/Numeric Search area, use text boxes, lists of indexes, and lists of Boolean operators to construct a search. Omit index labels.
Browse (phrase search). From the command line, you can enter a phrase search (browse query), including the scan command and index label (sca me:). For guided browsing, use the Browse Authority History screen.

Note: Search for headings. Remember that you cannot search or browse for specific heading types such as personal names or subjects. The Authority History database has only general heading indexes for searching or browsing: Heading Word(s) (me:) and Heading Phrase (me=).

Command Line Search

	Action
1	On the Authorities tab, under Search Options, click Authority History. The Search Authority History screen appears.
2	In the Command Line Search area, type a keyword or numeric search in the Search for text box. Type an index label, followed by a colon (an:848328 or me:vivaldi). In a heading search, omit prepositions and articles. You can enter diacritics; the system removes them before processing the search. Do not enter subfield codes. To include variant endings, type the truncation symbol () after the term. Enter at least three characters of the word. Examples:librar, comput, catalog To include variant spellings, use character masking symbols (? and #). Examples:col?r retrieves `color` or `colour`; int?net retrieves `internet` or `intranet`, wom#n retrieves both `woman` and `women`. Qualify a search by specifying a status for the retrieved records. Use the Status index as a search qualifier only. Always combine a Status search term with a search term in another index. If you search the Status index only, you receive an error message. Combine searches with Boolean operators and, or, or not. (Note: You cannot use Boolean operators in scan (phrase search/browse) queries.)
3	(Optional) Show or hide cross references in keyword search results Two check boxes below the Search for box let you specify which cross reference tracings, if any, appear in search results. To show only the main entry for each retrieved record, clear both check boxes. To show See reference tracings in addition to the main entry for each record, select the check box labeled Show See References in Results. To show See Also reference tracings for each main entry, select the check box labeled Show See Also References in Results. To include both See and See Also references for each main entry, select both check boxes. Notes: Settings apply to search results only; the system ignores these options for browsing. Settings apply when you search from browse results by clicking a term that matches multiple authority records. While viewing search results, use the Action/Sort list to show or hide See references and/or See Also references. Settings for these options are retained until you change them.
4	When finished entering the search, click Search or press <Enter>. Note: Your search statement remains in the Search for text box until you revise the search or click Clear Search. Check boxes below the search form retain their settings (selected or cleared).

Guided search (Keyword/Numeric Search area)

	Action
1	On the Authorities tab, under Search Options, click Authority History.
2	In the Keyword/Numeric Search area, construct a search to retrieve the authority history records you want. Type search term(s) in one or more boxes in the form. For each term, select the index to search from the list to the right of the box in which you enter the term. To search for two or more terms in the same index, type the terms in one text box and select an index. Separate words with spaces (treated as and operators), combine terms with or, and/or exclude terms with not. To search for two or more terms in different indexes, type each term in a separate text box and select the index to search for each term. Select the desired Boolean operator from the list of operators at the left end of the box in which you enter the second term. In a heading search, omit prepositions and articles. You can enter diacritics; the system removes them before processing the search. Do not enter subfield codes. To include variant endings, type the truncation symbol () after the term. Enter at least three characters of the word. Examples:librar, comput, catalog To include variant spellings, use character masking symbols (? and #). Examples:col?r retrieves `color` or `colour`; int?net retrieves `internet` or `intranet`, wom#n retrieves both `woman` and `women`. Qualify a search by specifying a status for the retrieved records. Use the Status index as a search qualifier only. Always combine a Status search term with a search term in another index. If you search the Status index only, you receive an error message.
3	(Optional) Show or hide cross references in results Two check boxes below the search entry form let you specify which cross reference tracings, if any, appear in search results. To show only the main entry for each retrieved record, clear both check boxes. To show See reference tracings in addition to the main entry for each record, select the check box labeled Show See References in Results. To show See Also reference tracings for each main entry, select the check box labeled Show See Also References in Results. To include both See and See Also references for each main entry, select both check boxes. Notes: While viewing search results, you can use the Action/Sort list to show or hide See references and/or See Also references. Settings for these options are retained until you change them.
4	Check the search form for errors in the terms, index selections, or operators. Clear search To clear the text boxes, click Clear Search. Index lists retain the last index you selected. Operator lists retain the last operator you selected. Check boxes below the search form retain their settings (selected or cleared).
5	Click Search or press <Enter>. Retain search To preserve keywords you typed in the text boxes, select the Retain Search check box. If Retain Search is not selected (the default setting), the system clears the text boxes. Index lists always retain the last index you selected. Lists of Boolean operators always retain the last operator you selected. Settings for the Show References options are retained until you change them.

Authority History search indexes

Index	Label	Format	Example
OCLC ARN	an:	Type all digits. Leading zeros are optional.	01450635 1450635 an:01450635 an:1450635
LCCN Words	ln:	Type year portion (2 or 4 digits) and control number. Leading zeros in the control number portion are optional. Alphabetic prefix is optional to increase precision Hyphen is optional when you specify the LCCN index. Include the index label (ln:) or select LCCN from an index list.	78-5201 ln:78-5201 2001-12345 82-000012 82-12 n85-204041 ln:85-204041 ln:sh85-061704 sh85-61704
Heading Words	me:	Type a significant word in the heading (1xx and 4xx fields).	me:vivaldi
Status	ahs:	Use the Status index as a search qualifier only. Always combine a Status search term with a search term in another index. If you search the Status index only, you receive an error message. Status codes. Possible status codes are: c - Corrected or revised record n - New record d - Deleted record p - Record deleted by OCLC Quality Assurance staff	ahs:c

About the Authority History database

Please note the following points about the purpose of this database and the limited functionality available for using the records.
The Authority History database permanently stores:
- All previous, now superseded, versions of authority records distributed by the Library of Congress
- Versions of newly added and modified records distributed to Library of Congress by OCLC NACO participants
- Copies of current authority records sent from LC via the distribution cycle (includes all records in the Authority File)
- Name authority records deleted by OCLC quality control staff
Database coverage begins in the 1980's.
Records are stored and displayed in the MARC21 authorities format.

About authority history records

Authority history records are view-only and always appear in display mode in the MARC Template view.
A timestamp at the top of the record shows the date and time when the record was added to the Authority History database. (Records in the Authority File do not contain a timestamp.)
You cannot edit, save, export, or derive new authority records from these records. You can copy text from an authority history record and then paste it into another record or document.
Actions available on displayed authority history records are: Print Record and View Authority Record (to retrieve the current version of the record in distribution from the Authority File).
More? For more information, search Help for the words authority history.
Use authority history records:
- Trace the history of a currently distributed authority record or an LCCN. For example, you might want to know when changes were made, or when a cross-reference or citation was added. Or you want to check the cancelled authority record when the distributed record contains a subfield z in field 010.
- Check for headings that you can no longer find in a distributed record in the Authority File.
- Identify changes made to a distributed authority record.
- Determine the origin of a problem with a distributed record.

Authority History timestamp: details

A unique timestamp (labeled Timestamp) appears in the record identification area of an Authority History record.

The system assigns a unique timestamp to each Authority History record. The timestamp consists of: the date and time the record was added to the Authority History database, the OCLC ARN, a source program identification, and the status of the record.
Example:1990101 [yyyymmdd] 13.36.22xxx.Z [time to the millisecond Z = Greenwich Mean Time] 12345678 [OCLC ARN] S [status] C [source program identification]
S [status (RecStat code)]: n = new, c = changed, d = deleted, p = deleted by OCLC staff
S [source program ID]: 3 [initial database load from the LC Names and Subjects Authority File]; 4 [In Distribution update from Connexion client]; 5 [In Distribution update from Connexion browser]; 6 [loaded from the LC distribution file]; r [loaded from the Research Libraries Group authority history database]

Note: Deleted records. If applicable, the record identification are may contain the following notice about the record:
The Deleted Record notice indicates that the record has been deleted from the distributed Authority File, It is either a deleted record issued by the Library of Congress or a record manually deleted by OCLC Quality Control staff.

Open authority history record(s) from distributed authority record

When viewing a distributed authority record from the Authority File, you can quickly retrieve all superseded authority records that have the same OCLC ARN.

Notes on this function:
Not available from save file records. When viewing a saved authority record from the Authorities save file, the View Authority History Record(s) action is not available
Copy of distributed record retrieved. The Authority History database contains a copy of each distributed authority record. Therefore, your search always retrieves the same record that you were viewing from the Authority File. You may retrieve other superseded records, or only a copy of the distributed record.
Viewing a referenced record via a linked 5xx field. A referenced record viewed from a 5xx link is for display only; the View Authority History Record(s) action is not available. To retrieve superseded versions of the record, search for the Authority File or the Authority History database.

Action

Result

In the distributed authority record (retrieved from the Authority File),

On the Action list click View Authority History Record(s) or press <Alt><K> and then <H> (or <Alt><J> and then <H>)..

The system search

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