Daniel Boone was a legendary American frontiersman, known for his pioneering exploration and settlement of Kentucky.
Zebulon Pike was an intrepid American explorer and soldier who discovered a significant mountain range that now bears his name, the Pike's Peak.
Vasco Núñez de Balboa was a Spanish explorer and conquistador who discovered the Pacific Ocean from the New World in 1513.
Diogo Cão was a Portuguese explorer who discovered the Congo River and mapped much of West Africa's coastline in the 15th century.
Henry Hudson was an English explorer who navigated the Arctic and North Atlantic Oceans in search of a Northwest Passage to Asia.