First African Settlers Reach North America

"On August 20, 1619, a Dutch ship arrived in Jamestown, Virginia, carrying Captain Jope and a cargo of twenty Africans.... Although they were not the first Africans to arrive in North America, they were the first African settlers." 

from Black Saga: The African American Experience by Charles M. Christian

These are the first African Americans.

http://www.blacksaga.org/