Juan Ponce de León
On March 27, 1513, Ponce de León sighted North America (specifically Florida) for the first time, mistaking it for another island. Later, on April 2, he landed somewhere on the east coast of the newly discovered land and claims it for Spain.
Ponce de Leon and his party were attacked by a tribe of Native Americans, and he was greatly injured. After this attack, he returned to Havana, Cuba, where he died.