Answer:
Fort de L'Ascension
Step-by-step explanation:
The French built Fort de L'Ascension (later, de Massiac) on the Ohio River in 1757 near the present Metropolis, Illinois. St. Louis was found in 1764 by French fur traders. In 1765, it was made the capital of Upper Louisiana; and after 1767, control of the region west of the Mississippi was given to the Spanish.