They are known as either "The Americas" or "The Western Hemisphere"
There is North America, Central (or Middle) America, and South America. Central (Middle) America is associated with North America.
The indies
The Americas.
Central America separates North and South America. Very funny. If you are referring to the narrowest part of the land connecting North and South America, it is called the Isthmus of Panama.
North and South America is called "The Americas" within that are countries like USA, Canada, Brazil, Argentina ect
South of North America is South America.
There is no single ruler of south America. It is a continent like Asia or North America
South America
They came into Alaska across a land bridge called Beringia. Then they passed through North America into South America.
Nope... It's called........... Central America!
North America
The American continents are located in both northern (North and Central America) and southern (South America) hemispheres. The United States of America (sometimes improperly called simply "America" is on the North American continent and therefore in the northern hemisphere. The US Civil War is sometimes called a war between "north" and "south" but in that case both sides were in the USA, in North America, and in the northern hemisphere.