La Salle's expedition from which river's mouth led to his claim?
The Ohio River
The Colorado River
The Nile River
The Illinois River
Answer
The Illinois River served as the starting point for La Salle's expedition, which ultimately led to his claim of the vast territory in the Mississippi River basin. Setting out from the mouth of the Illinois River, La Salle embarked on his journey of exploration, traveling down the Mississippi River and establishing French presence in the region.
Unleashing the Explorer Within: The Legendary Journey of René-Robert Cavelier, Sieur de La Salle