Why do the British and Americans speak English? Every country has its own language. Why do the United States and Britain speak English? What is the origin of the two countries before?

Why do the British and Americans speak English? Every country has its own language. Why do the United States and Britain speak English? What is the origin of the two countries before?

The United States used to be a British colony
Before, the American Atlantic coast were all English Puritans. They were the earliest English colonists in the United States