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
United States Declaration of Independence minority in Parliament warned that the government was driving the colonists toward independence. Thomas Paine's pamphlet "Common Sense" was published in January 1776, just as it became clear in the colonies that the king was not inclined to act as a conciliator. Paine had only recently arrived in the colonies from England, and he argued in favor of colonial independence, advocating republicanism as an alternative to monarchy and hereditary rule. "Common Sense" made a persuasive and impassioned case for independence, which had not yet been given serious intellectual consideration in the American colonies. Paine connected independence with Protestant beliefs as