Respuesta :
Robert La Salle was the person who explored the entire Mississippi to the Gulf of Mexico. He was sent to explore this region of North America by King Louis XIV. In 1682, L…a Salle named the Mississippi Basin Louisiana and claimed it for his country France.
Answer:
In 1682, a French explorer named René Robert Cavelier, aka "Sieur de La Salle", was the guy who led an expedition down the Illionois and Mississippi rivers to the Gulf of Mexico thus declaring the Mississippi Valley as France's ownership.
Explanation: