Part 1 of 2, we take a look at the conquest of the Americas by European explorers and settlers, including Columbus' voyages, Cortez' conquest of the Aztecs, Pizarro's conquest of the Incas, the Spanish colonies in South and Central America, the Portuguese colony of Brazil, the French and Dutch colonies, and the English colony of Jamestown, along with five major wars between the native peoples and the British colonists.