Thirteen British colonies formed the original core of the United States during the independence movement commemorated by America250.
The colonies stretched along the Atlantic coast and were commonly grouped as New England, Middle, and Southern colonies. They included Virginia, Massachusetts, Pennsylvania, Georgia, and ten others that later became the first states of the United States.
Their governments and economies differed considerably, but the colonies increasingly cooperated in opposition to British policies. The First and Second Continental Congresses provided forums for intercolonial action, while the Revolutionary War created military and political connections.
The number 13 remains visible in national symbols, especially the flag’s stripes. The 13 colonies should not be confused with the 50 states of the modern United States: the original colonies became the first states, while later states joined over many generations.