South America is to the east of the Pacific, west of the Atlantic Ocean, south of North America and north of Antarctica.
One projection by physicists shows North and South America drifting apart, and Africa sideways, smooshed into Europe.
Then, in 2002, a map taken using of the gravity of the region revealed the rough structure of the continent.
For example, the Nahua in Mexico are the descendants of the Aztecs, and many people throughout Ecuador, Peru, and Chile are descendants of the Incas.