• American Memory
  Historical Collections of the Library of Congress National Digital Library.

• Avalon Project (Yale)

• A Chronology of U.S. Historical Documents
  Full text of some important documents, ranging from the Magna Carta to the current State of the Union address. List maintained by the University of Oklahoma Law Center. Includes images of flags of the United States and current state flags.

• A Century of Lawmaking
  Includes journals of Congress, U.S. Statutes, and debates of Congress, such as The Congressional Globe, and the Congressional Record. Produced by the Library of Congress.

• Core Documents of U.S. Democracy
  A wonderful collection of historic documents and links. Some are scanned (digital images).

• Historical Publications of the United States Commission on Civil Rights
  Digital Collection of Civil Rights Commission publications. Thurgood Marshall Law Library, University of Maryland-Baltimore.

• Library of Congress

  • Built in America: HABS/HAER
  • Exhibits

• Making of America: Cornell University and Making of America: University of Michigan

• National Archeological Database

• National Archives

  • Electronic Records Archives
  • America's Historical Documents
  • Online Exhibits
  • Presidential Libraries

• National Museum of American History, Smithsonian Institution

• National Park Service

  • History & Culture
  • National Register of Historic Places

• National Security Archive
  The National Security Archive is a non-governmental, non-profit institution. It is a library and archive of declassified U.S. documents obtained through the Freedom of Information Act. NSA is the world's largest non-governmental library of declassified documents. The Archive's inventory is available on the Web site.

• Smithsonian

  • Smithsonian Institution Libraries (SIL)
    Includes a digital collection of rare books.
  • Smithsonian Photographs Online
  • Smithsonian Images
    Browse and search selected photographs.

• Today in History (American Memory)

Statistics

• Historical Statistics of the United States, Colonial Times to 1970

• Statistical Abstract: Earlier editions (1878-)

• Statistical Abstract of the United States (Census Bureau)
  

  • Statistical Abstract has been published since1878. Most volumes are available in digital format.
  • Historical Statistics: 2009 Statistical Abstract
    Years of coverage vary by topic. Data available in PDF and Excel formats.

• Agriculture (crops and livestock) -- National Agricultural Statistics Service (NASS)
  • Statistics by Subject (data for some commodities cover as far back as the 1860s.)
  • Historical Census Publications
    Digital copies of the Census of Agriculture from 1850 to 1950.

• Economic data -- Bureau of Economic Analysis (BEA)
  Interactive Tables: GDP and the National Income and Product Account (NIPA) Historical Tables

• Economic Report of the President, 1947 forward (FRASER)
  FRASER (Federal Reserve Archival System for Economic Research) cumulates the statistical tables published in the Economic Report from 1947 onward. Some of the data start in 1929.

• Economic Report of the President (reports issued from 1995-)
  Tables contain historical data, dates of coverage vary. Some tables date to 1929.

• Energy -- Energy Information Administration
  State and U.S. Historical Data

• Historical Census Browser (1790-1960)

• Labor -- Bureau of Labor Statistics (BLS)
  Selected historical data cover back to 1948.

• Vital Statistics of the United States (VSUS) National Center for Health Statistics (NCHS)
  Volume 1: Natality is available from 1937 to 2003.

More Resources

• ArchiveGrid [restricted to UD users]
  Collection descriptions and online finding aids of archival material from more than 2,500 libraries, museums, historical societies, and archives around the world.
• Browse Topics: History | Military History
• Explore Federal Government (UMich Documents Center)
• Library of Congress Manuscripts: An Illustrated Guide
• United States History: Text, Image, Sound, and Archival Databases (UD Library)