Territorial evolution of the United States Territorial evolution of the United States The United States of America was created on July 4, 1776, with the declaration of independence of thirteen British colonies. Their independence was recognized by Great Britain with the Treaty of Paris of 1783, following the American Revolutionary War. This effectively doubled the size of the colonies, now able to stretch west past the Proclamation Line to the Mississippi River. This land was organized into territories and then states, though there remained some conflict with the sea-to-sea grants claimed by some of the original colonies. In time, these grants were ceded to the federal
History of the United States (1776–1789) the federal government's powers of defense and taxation with the Constitution of the United States of America in 1789, still in effect today. During the seventeenth and eighteenth centuries, the British colonies in America had been largely left to their own devices by the crown; it was called salutary neglect. The colonies were thus largely self-governing; half the white men in America could vote, compared to one percent in Britain. They developed their own political identities and systems which were in many ways separate from those in Britain. This new ideology was a decidedly republican political viewpoint, which rejected royalty,