Hernando Cortes lead an army to Mexico in 1519 and conquered the Aztecs. His army became known as conquistadors which means Spanish conquerors. Pizarro lead an army into Peru in 1532 and conquered the Aztecs without losing one of his soldiers. The Spaniards superior weapons like guns and canons, steal armor, and the diseases they brought over made it easy to conquer the natives of South America. Magellan was not a conquistador but he was a Spanish sailor who was credited with being the first to circumnavigate or sail around the whole world.
I'm Spanish and I Know it (Parody of LMFAO)