The 1783 Treaty of Paris concluded the American Revolutionary War between the British Empire and the United States of America. Stretching from colonial settlements along the Atlantic Coast in the east, to the banks of the Mississippi river in the West, the borders of the new republic extended across a vast expanse of land. The boundaries, however, did not remain static for long; over the course of the next century the expansion of the American frontier followed a pattern of migration, settlement, and displacement.