Hernando de Soto stops near present-day Walls, Mississippi, and sees the Mississippi River (then known by the Spanish as Río de Espíritu Santo, the na...

Hernando de Soto stops near present-day Walls, Mississippi, and sees the Mississippi River (then known by the Spanish as Río de Espíritu Santo, the name given to it by Alonso Álvarez de Pineda in 1519).