The tribes of the Illinois Confederation faced much relocation during this century, as various attacks from other tribes took place. In 1673 when French explorers
Jolliet and
Marquette made contact with the region, the Illini occupied various corners of the midwest, with the Cahokia and Tamaroa occupying western Illinois and eastern Missouri. The total population of the Illinois Confederation was estimated to be around 10,000. Factors such as warfare from groups such as the
Iroquoi, and conflicts over resources such as firewood forced many tribes of the Illinois confederation to relocate. In 1699, the Cahokia and Tamaroa consolidated and completely relocated to Cahokia. French missionaries built missions in an attempt to convert the Cahokia people. They built the Tamaroa/Cahokia mission in 1699 CE. ==18th century==