Atlantic World and Discovery of the new world By jpeterson1 Sep 30, 1492 Columbus sailed the Atlantic Ocean Sep 30, 1511 First enslaved Africans arrive in the Americas Sep 30, 1521 : Cortés conquers Aztec Empire Sep 30, 1533 Pizarro conquers Incan Empire Sep 30, 1607 English found Jamestown Sep 30, 1620 English found Plymouth Sep 30, 1763 French and Indian War ends