Territorial evolution of the United StatesThe United States of America was formed after thirteen British colonies in North America declared independence from the British Empire on July 4, 1776. In the Lee Resolution, passed by the Second Continental Congress two days prior, the colonies resolved that they were free and independent states. The union was formalized in the Articles of Confederation, which came into force on March 1, 1781, after being ratified by all 13 states. Their independence was recognized by Great Britain in the Treaty of Paris of 1783, which concluded the American Revolutionary War.
Indiana TerritoryThe Indiana Territory, officially the Territory of Indiana, was created by an organic act that President John Adams signed into law on May 7, 1800, to form an organized incorporated territory of the United States that existed from July 4, 1800, to December 11, 1816, when the remaining southeastern portion of the territory was admitted to the Union as the state of Indiana. The territory originally contained approximately of land, but its size was decreased when it was subdivided to create the Michigan Territory (1805) and the Illinois Territory (1809).
Territories of the United StatesTerritories of the United States are sub-national administrative divisions overseen by the federal government of the United States. The various American territories differ from the U.S. states and Indian reservations as they are not sovereign entities. In contrast, each state has a sovereignty separate from that of the federal government and each federally recognized Native American tribe possesses limited tribal sovereignty as a "dependent sovereign nation.
Illinois CountryThe Illinois Country (Pays des Illinois pɛ.i dez‿i.ji.nwa; "land of the Illinois (plural)", i.e. the Illinois people)—sometimes referred to as Upper Louisiana (Haute-Louisiane ot.lwi.zjan; Alta Luisiana)—was a vast region of New France claimed in the 1600s in what is now the Midwestern United States. While those names generally referred to the entire Upper Mississippi River watershed, French colonial settlement was concentrated along the Mississippi and Illinois Rivers in what is now the U.S.
