Kaskaskia, Illinois
In 1733, the French built Fort Kaskaskia. The British destroyed the fort in 1763 during the French and Indian War. After the war France gave up the territory east of the river. Many French-speaking people from Kaskaskia and other colonial towns moved west of the Mississippi to the Spanish-held, Upper Louisiana settlements of  Ste. Genevieve, St. Louis, and other areas.