This document provides an overview of the peoples and civilizations that existed in North and South America before European contact, including hunting and gathering societies as well as more advanced civilizations like the Aztecs and Incas. It then discusses the factors that drove European exploration across the Atlantic starting in the late 15th century, focusing on Spain's conquest of native empires in Mexico and South America led by conquistadors like Cortes. Finally, it briefly outlines the establishment of the first English colonies in North America in the late 16th and early 17th centuries.