Digital HistoryIncludes: a U.S. history e-textbook; over 400 annotated documents, primary sources on slavery, Mexican American and Native American history, and U.S. political, social, and legal history; short essays on the history of film, ethnicity, private life, and technology; multimedia exhibitions; reference resources that include a searchable database of 1,500 annotated links, classroom handouts, chronologies, glossaries, an audio archive including speeches and book talks by historians, and a visual archive with hundreds of historical maps and images.