American Slavery Collection, 1820-1922 This link opens in a new windowThis digital edition of the American Antiquarian Society’s extraordinary holdings of slavery and abolition materials delivers more than 3,500 works published over the course of more than 100 years. Long awaited in fully searchable form, The American Slavery Collection addresses every facet of American slavery—one of the most important and controversial topics in U.S. history. These diverse materials, all filmed in full-resolution color, include books, pamphlets, graphic materials, and ephemera; among them are a large number of invaluable Southern imprints.