by 1776 how many english colonies had been established along the atlantic coast
Thirteen Colonies The Thirteen Colonies were a group of British colonies on the east coast of North America founded in the 17th and 18th centuries that declared independence in 1776 and formed the United States of America. The Thirteen Colonies had very similar political, constitutional, and legal systems, and were dominated by Protestant English-speakers. They were part of Britain's possessions in the New World, which also included colonies in Canada and the Caribbean, as well as East and West Florida.
Middle Colonies The Middle Colonies were four of the thirteen colonies in British America, located between the New England Colonies and the Southern Colonies. Along with the Chesapeake Colonies, this area now roughly makes up the Mid-Atlantic states (though with the notable exception of Vermont, which is reckoned with New England).