Topic summary
Illinois Confederacy
Extracted from the Wikipedia article Illinois Confederation.
A decreasing Illinois Confederacy
By the mid-1700s, the twelve or thirteen tribes of the confederation had dwindled to five: the Cahokia, Kaskaskia, Michigamea, Peoria, and Tamaroa. European diseases drastically reduced the numbers of the Illinois; the wars had arisen due to conflicts between tribes over resources and trade goods, or were initiated by European powers seeking to expand their territorial holdings by incentivizing inter-tribal warfare.