A legacy of helping libraries
Since the publication of its first edition in 1876, the Dewey Decimal Classification® (DDC) system has crossed many milestones. Many of these milestones have advanced the organization of library collections to help librarians meet their users' information needs more efficiently.
|1876||A Classification and Subject Index for Cataloguing and Arranging Books and Pamphlets of a Library—the first edition of the DDC—is published anonymously in Amherst, Massachusetts.|
|1885||Second edition of the DDC is published under Melvil Dewey's name.|
|1900||The first abridged edition of the DDC is published.|
|1911||The seventh edition of the DDC is published, which is the first to carry the Forest Press imprint.|
|1916||The Decimal Classification Advisory Committee—the American Library Association's (ALA) first advisory committee—is appointed.|
|1923||The DDC editorial office moves to the Library of Congress in Washington, DC.|
|1930||The Library of Congress begins to print Dewey numbers on catalog cards.|
|1931||Melvil Dewey, creator of the DDC, dies December 26 at age 80.|
|1937||The Decimal Classification Committee, a forerunner to the present-day Dewey Decimal Classification Editorial Policy Committee, is established.|
|1953||The Dewey Decimal Classification Editorial Policy Committee is reconstituted to represent the American Library Association, Forest Press and the Library of Congress to guide to editorial development of the DDC.|
|1958||The 16th edition of the DDC is published, which is the first to be edited under an agreement between the Library of Congress and Forest Press.|
|1988||Forest Press, based in Albany, New York, becomes a division of OCLC.|
|1993||OCLC Forest Press publishes Electronic Dewey, the first library classification scheme in electronic form.|
|1996||The 21st edition of the DDC and Dewey for Windows® are published, which is the first time print and electronic formats are published simultaneously.|
|1999||The OCLC Forest Press office moves from Albany, New York, to OCLC headquarters in Dublin, Ohio; three years later, the Forest Press imprint is retired.|
|2000||WebDewey® in CORC is published.|
|2002||WebDewey and Abridged WebDewey are published.|
|2003||The 22nd edition of the DDC is published.|
|2004||The 14th edition of the Abridged DDC is published.|
|2011||WebDewey 2.0 is released.|
|2011||The 23rd Edition of the DDC is published.|
|2012||The 15th Abridged Edition of the of the DDC is published.|
Download the brochure
Learn more about organizing your materials with the world's most widely used library classification system.
The Dewey blog is a great source for news and views on classification issues as well as interesting and unusual DDC resources and curiosities. It's also a convenient way to share feedback directly to the DDC editors to help shape the future of the DDC.
Past and recorded events
Watch this space for past and recorded Dewey Services events.
Sign up for news and updates on Dewey Services.
Would you like to subscribe to other OCLC e-mails or provide more information on your profile? Providing more information now will make sure you receive the OCLC news that matters most to you.
A message has been sent to your e-mail address. Please follow the link in that e-mail to the page where you can edit your preferences. This is done to ensure that only you can edit your e-mail preferences.
All copyright rights in the Dewey Decimal Classification system are owned by OCLC. Dewey, Dewey Decimal Classification, DDC, OCLC and WebDewey are registered trademarks of OCLC.