The Thirteen Colonies, also known as the Thirteen British Colonies, the Thirteen American Colonies, or later as the United Colonies, were a group of British colonies on the Atlantic coast of North America.Founded in the 17th and 18th centuries, they began fighting the American Revolutionary War in April 1775 and formed the United States of America by declaring full …

The governments of the Thirteen Colonies of British America developed in the 17th and 18th centuries under the influence of the British constitution.After the Thirteen Colonies had become the United States, the experience under colonial rule would inform and shape the new state constitutions and, ultimately, the United States Constitution.. The executive branch was led by …