The archive is made up of more than 1.3 million pages of digitized historical material across 33 archival collections from the United States and Europe. The historical collections provide original manuscripts, signed letters, expedition records, reports, maps, diaries, descriptions of voyages, ephemera, and more. Coverage extends from the 15th to 20th century, providing information about the indigenous peoples of the region, the Conquest (la Conquista), colonial rule, religion, struggles for independence, and political, economic, and social progress and issues in newly independent nations.