the people who almost found the Mississippi river is Jacques marquette and Lois jolliet they tured around because they were afraid they would see spanish soldiors but the real man who fund the mouth of the Mississippi river is..............idk go to Google and ask (: have a nice day
Hernado De Soto was the first Europen to explore Mississippi. Hernadl explored from 1540 - 1541.
France
France
hahaha i dont realy know
I don't know the first but La Salle was the who claimed it.
under French rule until 1803, when all the French territory west of the Mississippi River was purchased by the United States.i.e. it was first claimed by France .
Hernando De Soto claimed nothing. He was the first European to see the Mississippi river.
Hernando De Soto was the first known European Explorer in Mississippi. Sieur de La Salle a French explorer was the first to travel down the Mississippi River in 1682. La Salle claimed the Mississippi Valley for France on April 9, 1682.
He was the first Europen explorer to see the eastern side of the Pacific Ocean.
Spain originally claimed the land west of the Mississippi. However, Russia claimed Alaska and some of the west coast. Mexico had won independence from Spain in 1810. Then Napoleon of France conquered Spain and all of its lands.
French explorer Rene-Robert Cavelier, Sieur de La Salle was the first to explore the length of the Mississippi River. He named the basin Louisiana and claimed it on April 9, 1682 for France.
First France, then it was given to Spain, then back to France again, and it was then sold to the United States which still has possession of it.