The Territory of Illinois was an organized incorporated territory of the United States that existed from March 1, 1809, until December 3, 1818, when the...

1812, the Illinois Territory was the scene of fighting between Native Americans and United States soldiers and settlers. The Illinois Territory at that...

Illinois Territory elected a non-voting delegate at-large to Congress from 1812 to 1818. These are tables of congressional delegations from Illinois to...

Territory (1805) and the Illinois Territory (1809). The Indiana Territory was the first new territory created from lands of the Northwest Territory,...

from Kentucky via the Ohio River. Illinois was part of the United States' oldest territory, the Northwest Territory, and in 1818 it achieved statehood...

Pritzker, who took office on January 14, 2019. Illinois Territory was formed on March 1, 1809, from Indiana Territory. It had only two governors appointed by...

members of the United States House of Representatives from the state of Illinois. For chronological tables of members of both houses of the United States...

The "Illinois" in the territory's name is a reference to the Illinois Confederation, a group of related Algonquian native peoples. The Illinois Country...

tribes of the Illinois Confederation to Christianity. Prior to the establishment of Illinois as a state, the government of the Northwest Territory created St...

Christian County. The original Knox County, Illinois, became extinct with the formation of the Illinois Territory in 1809 - or, more precisely, it became...