African-American history
African American history started with the arrival of Africans to North America in the 16th and 17th centuries. Former Spanish slaves who had been freed by Francis Drake arrived aboard the Golden Hind at New Albion in California in 1579. The European colonization of the Americas, and the resulting Atlantic slave trade, led to a large-scale transportation of enslaved Africans across the Atlantic; of the roughly 10–12 million Africans who were sold by the Barbary slave trade, either to European slavery or to servitude in the Americas, approximately 388,000 landed in North America. After arriving in various European colonies in North America, the enslaved Africans were sold to white colonists, primarily to work on cash crop plantations. A group of enslaved Africans arrived in the English Virginia Colony in 1619, marking the beginning of slavery in the colonial history of the United States; by 1776, roughly 20% of the British North American population was of African descent, both free  and enslaved.The American Revolutionary War, which saw the Thirteen Colonies become independent and transform into the United States, led to great social upheavals for African Americans; Black soldiers fought on both the British and the American sides, and after the conflict ended the Northern United States gradually abolished slavery.