1. Juan Ponce de Leon (1513): Ponce de Leon was the first European explorer to reach Florida, searching for the legendary Fountain of Youth.
2. Vasco Núñez de Balboa (1513): Balboa crossed the Isthmus of Panama, becoming the first European to see the Pacific Ocean.
3. Hernán Cortés (1519-1521): Cortés led an expedition that conquered the Aztec Empire and established Spanish rule over Mexico.
4. Ferdinand Magellan (1519-1522): Magellan's expedition completed the first circumnavigation of the world, although he himself did not survive the journey.
5. Francisco Pizarro (1531-1533): Pizarro conquered the Inca Empire in South America, establishing Spanish rule over much of the region.
6. Pedro de Alvarado (1524): Alvarado conquered what is now Guatemala and El Salvador, establishing Spanish rule in Central America.
7. Gonzalo Jiménez de Quesada (1536-1538): Quesada conquered the Muisca Confederation, establishing Spanish rule in Colombia.