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Educational Resources Information Center (U.S.)
6,093
NetLibrary, Inc
5,548
American slavery collection, 1820-1922
3,154
ProQuest (Firm)
2,666
ProQuest Ebook Subscriptions
2,367
Sabin Americana, 1500-1926
2,031
Gale Group
1,266
University of Virginia. Library. Electronic Text Center
1,084
Frank and Virginia Williams Collection of Lincolniana (Mississippi State University. Libraries)
867
United States. Congress
813
Gotham Book Mart Collection (University of Pennsylvania)
770
JSTOR
671
National Center for Education Statistics
625
Lincoln, Abraham, 1809-1865
594
Hathi Trust
593
United States. Department of State. Office of Public Communication. Editorial Division
565
Joanna Banks Collection of African American Books (University of Pennsylvania)
553
United States. Office of Educational Research and Improvement
542
Franklin, Benjamin, 1706-1790
503
United States. National Park Service
488
Washington, George, 1732-1799
486
George Clapp Vaillant Book Fund
462
Jefferson, Thomas, 1743-1826
455
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963
425
United States. Dept. of State. Office of Public Communication. Editorial Division
425
Culture Class Collection (University of Pennsylvania)
344
Roosevelt, Theodore, 1858-1919
340
Smithsonian Institution. Bureau of American Ethnology
327
United States. Congress House
327
Douglass, Frederick, 1818-1895
325
Arts and Entertainment Network
324
Confederate States of America. Congress. House of Representatives
316
History Channel (Television network)
311
United States. Department of the Army
307
Alfred Whital Stern Collection of Lincolniana (Library of Congress)
299
PBS Home Video
287
United States. Army Pictorial Center
287
United States. Department of State
279
Columbus, Christopher
266
WGBH (Television station : Boston, Mass.)
266
EBSCOhost books
257
United States
247
American Culture Class Collection (University of Pennsylvania)
246
New Video Group
244
Dramatexts
242
Washington, Booker T., 1856-1915
241
PALCI EBSCO books
232
United States. Department of Energy
231
American Anti-Slavery Society
230
United States. Congress. Senate. Committee on Foreign Relations
227
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