African-American firsts First mayors ยท US state firsts Landmark African-American legislation African-American-related topics Topics related to Black and African people. African-American history is the portion of American history that specifically discusses the African American or Black American ethnic group in the United States. Most African Americans are the descendants of captive Africans held in the United States from 1619 to 1865. Blacks from the Caribbean whose ancestors immigrated, or who immigrated to the U.S., also traditionally have been considered African American, as they share a common history of predominantly West African or Central African roots, the Middle Passage and slavery.