De soto was probably the first european to cross what body of water?

indian river
pacific ocean
atlantic ocean
mississippi river

De Soto was probably the first European to cross the Mississippi River.

Explanation:

Hernando de Soto was a Spanish conqueror and explorer that participated in the expeditions of Francisco Pizarro and Diego de Almagro the Elder in the conquest of Peru (1532-1534), then returned to Spain with a large fortune and obtained authorization from Charles V to conquer Florida at his own expense. He landed on May 25, 1539 with his companions in Tampa Bay, sent the ships to Cuba, and explored the southeastern United States of America: Georgia, South Carolina, North Carolina, Tennessee, Alabama, and Louisiana. He was the first European to see and cross the Mississippi River (1541), and he died of fevers by the same river into which he was immersed - without receiving the blessings of the natural people of the land, which according to historical records have liquidated him from their canoes.

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