This Web site was designed and developed to support the teaching of American History in K-12 schools and colleges and is supported by the Gilder Lehrman Institute and the College of Education at the University of Houston. The Gilder Lehrman Institute hosts summer institutes for teachers, awards research fellowships and book prizes to scholars, and sponsors a center for the study of slavery, resistance, and abolition at Yale. The materials on this Web site include a U.S. history textbook; over 400 annotated documents from the Gilder Lehrman Collection on deposit at the Pierpont Morgan Library, supplemented by primary sources on slavery, Mexican-American and Native-American history, and U.S. political, social, and legal history; succinct essays on the history of film, ethnicity, private life, and technology; multimedia exhibitions; and reference resources that include a searchable database of 1,500 annotated links, classroom handouts and lesson plans, chronologies, glossaries, an audio archive including speeches and book talks by historians, and a visual archive with hundreds of historical maps and images. The site's Ask the HyperHistorian feature allows users to pose questions to professional historians.