North America is a continent in the Northern and Western hemispheres of Earth. It is to the east of the Pacific Ocean, the West of the Atlantic Ocean, the South of the Arctic Ocean, and the North of South America. It is the northern part of the Americas. The southernmost part is Central America.
Hundreds of millions of years ago, North America was part of a larger ancient supercontinent named Laurasia. A few million years ago, a new land bridge arose and connected North America to South America.
North America includes these large countries, listed from North to South: