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) History of the United States (1776–1789) Between 1776 and 1789, the United States of America emerged as an independent country, creating and ratifying its new constitution and establishing its national government. In order to assert their traditional rights, American Patriots seized control of the colonies and launched a war for independence. The Americans declared independence on July 4, 1776, proclaiming "all men are created equal". Congress raised the Continental Army under the command of General George Washington, forged a military alliance with France and defeated the two main British invasion armies. Nationalists replaced the governing Articles of Confederation to strengthen