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About the Project

Aquifer is a program of the Digital Library Federation, a consortium of libraries that are pioneering the use of electronic information technologies to extend their collections and services. The Aquifer American Social History Online database collects together 19th and 20th century primary resources from unique historical digital collections, and includes more than 514,708 digitized objects in 9 formats, including books, pamphlets, journal articles, maps, sheet music, videos, data sets, political cartoons, posters, and oral histories from over 140 American Social History research collections.

As part of the process of making Columbia’s digital collections available to Aquifer, in January 2008 Columbia’s Libraries Digital Program implemented several new standards and technologies, including the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) for repository interoperability and the Metadata Object Description Schema (MODS) for contributing cataloging data.

Columbia’s contributions started to become available in May 2008. They include:

  • Papers of John Jay (5/2008)
  • Lehman Special Correspondence Series (6/2008)
  • NYC Historical Monographs (7/2008)
  • Notable New Yorkers
  • Greene & Greene Architectural Drawings and Photos
  • Joseph Urban Stage Design