The document discusses four famous explorers: Christopher Columbus, Juan Ponce de Leon, Jacques Cartier, and Christopher Newport. Columbus sailed for Spain in 1492 and was the first European to discover North America. He landed in the Bahamas and called the land the "New World." Juan Ponce de Leon sailed for Spain and was the first European to land in Florida, claiming the land for Spain. Jacques Cartier sailed for France and explored the St. Lawrence River Valley in Canada, giving France a North American land claim. Christopher Newport sailed for England, wanting to discover riches and find a western sea route to Asia. He helped establish the Jamestown colony in Virginia.