Illinois Confederation in the context of "Cahokia (tribe)"

The Illinois Country (French: Pays des Illinois [pɛ.i dez‿i.li.nwa]; lit. 'land of the Illinois people'; Spanish: País de los ilinueses), also referred to as Upper Louisiana (French: Haute-Louisiane [ot.lwi.zjan]; Spanish: Alta Luisiana), was a vast region of New France claimed in the 1600s that later fell under Spanish and British control before becoming what is now part of the Midwestern United States. While the area claimed included the entire Upper Mississippi River watershed, French colonial settlement was concentrated along the Mississippi and Illinois Rivers in what is now the U.S. states of Illinois and Missouri, with outposts on the Wabash River in Indiana. Explored in 1673 from Green Bay to the Arkansas River by the Canadien expedition of Louis Jolliet and Jacques Marquette, the area was claimed by France. It was settled primarily from the Pays d'en Haut in the context of the fur trade, and in the establishment of missions from Canada by French Catholic religious orders. Over time, the fur trade took some French to the far reaches of the Rocky Mountains, especially along the branches of the broad Missouri River valley. The "Illinois" in the territory's name is a reference to the Illinois Confederation, a group of related Algonquian native peoples.

The Illinois Country was governed from the French province of Canada until 1717 when, by order of King Louis XV, it was annexed to the French province of Louisiana, becoming known as "Upper Louisiana". By the mid-18th century, major settlements included Cahokia, Kaskaskia, Chartres, Saint Philippe, and Prairie du Rocher, all on the east side of the Mississippi in present-day Illinois; and Ste. Genevieve across the river in what is now Missouri, as well as Fort Vincennes in what is now Indiana.

The Chicago Portage was an ancient portage that connected the Great Lakes waterway system with the Mississippi River system. This connection provided comparatively easy access from the mouth of the St. Lawrence River on the Atlantic Ocean to the Rocky Mountains and the Gulf of Mexico. The approximately six-mile link had been used by Native Americans for thousands of years during the Pre-Columbian era for travel and trade.

During the summer of 1673 members of the Kaskaskia, a tribe of the Illinois Confederation, guided French explorers Louis Jolliet and Father Jacques Marquette, the first known Europeans to explore this part of North America, to the portage. A strategic location, it became important to European exploration in the Midwest, resulting ultimately in the foundation of Chicago.

St. Clair County is the ninth most populous county in Illinois. Located directly east of St. Louis, the county is part of the Metro East region of the Greater St. Louis metropolitan area in southern Illinois. As of the 2020 United States census, St. Clair County had a population of 257,400, making it the second most populous county in Illinois outside the Northern Third. Belleville is the county seat and largest city.

Along the Mississippi River, Cahokia Village was founded in 1697 by French settlers and served as a Jesuit mission to convert tribes of the Illinois Confederation to Christianity. The area became the center of the French Illinois Country. Prior to the establishment of Illinois as a state, the government of the Northwest Territory created St. Clair County in 1790. In 1809, the county became the administrative center of the Illinois Territory and one of the two original counties of Illinois, alongside Randolph County. In 1970, the United States Census Bureau placed the mean center of U.S. population, which generally has moved west every decennial census, in St. Clair County.

Miami–Illinois or Wabash (endonym: myaamia, [mjɑːmia]) is an Indigenous Algonquian language that is spoken in the United States, historically in Illinois, Missouri, Indiana, western Ohio and adjacent areas along the Mississippi River by the Miami and Wea as well as the tribes of the Illinois Confederation, including the Kaskaskia, Peoria, Tamaroa, Cahokia, and possibly Mitchigamea. Although the last native speaker died in 1989, there has been an effort by the Myaamia (Miami) Nation of Oklahoma and the Miami Nation of Indians of the State of Indiana (a nonprofit organization) to revive the language and preserve their native heritage by teaching it to young and old members. As of 2016, it is estimated that around 500 members of the tribe use the language on a regular basis.

Peoria (/piˈɔːriə/ pee-OR-ee-ə) is a city in Peoria County, Illinois, United States, and its county seat. Located on the Illinois River, the city had a population of 113,150 as of the 2020 census, making it the eighth-most populous city in Illinois. It is the principal city of the Peoria metropolitan area in Central Illinois, consisting of Fulton, Marshall, Peoria, Stark, Tazewell, and Woodford counties and home to 402,391 people in 2020.

Established in 1691 by the French explorer Henri de Tonti, Peoria is the oldest permanent European settlement in Illinois, according to the Illinois State Archaeological Survey. Originally known as Fort Clark, it received its current name when the County of Peoria was organized in 1825. The city was named after the Peoria people, a member of the Illinois Confederation. On October 16, 1854, Abraham Lincoln made his Peoria speech against the Kansas–Nebraska Act. Prior to prohibition, Peoria was the center of the whiskey industry in the United States. More than 12 distilleries operated in Peoria by the end of the 19th century, more than any other city in the U.S.

The Kaskaskia (Miami–Illinois: Kaaskaaskia) were a historical Indigenous people of the Northeastern Woodlands. They were one of about a dozen cognate tribes that made up the Illiniwek Confederation, also called the Illinois Confederation. Their longstanding homeland was in the Great Lakes region. Their first contact with Europeans reportedly occurred near present-day Green Bay, Wisconsin, in 1667 at a Jesuit mission station.

The Peoria (Miami–Illinois: Peewaalia) are a Native American people. They are enrolled in the federally recognized Peoria Tribe of Indians of Oklahoma headquartered in Miami, Oklahoma.

The Peoria people are the remnants of the nations that constituted the Illinois Confederation. The Peoria Tribe was located east of the Mississippi River and north of the Ohio River. In the colonial period, they traded with French colonists in that territory.

The Tamaroa were a Native American people in the central Mississippi River valley of North America, and a member of the Illiniwek or Illinois Confederation of 12 or 13 tribes. The name "Tamaroa" is a derivative of the word tamarowa meaning "cut tail" in Illiniwek and relates to a totemic animal such as bear or wildcat. An Algonquian-speaking group, like the rest of the Illiniwek, they lived on both sides of the Mississippi River in the area of the confluence with the Illinois and Missouri Rivers. Tamaroan culture is presumed to be similar to that of the Kaskaskia, Peoria, and other Illinois tribes.