Who is the most Important explorer and why?

How do you say 1894 in french? Was the Atlantic Slave Trade the first kind of slave trade occurring in Africa? World War 1 was it The War to End All Wars? Which countries where in World War 1 and why? How did the Europeans cause civil war in Africa? How much was 5000 pounds in 1900 worth? How did exploration change renaissance worldview? What year did the stock market crash during World War 1? What is value of 1000 pounds sterling in 18th century? What happened on January 7 1608? How old is the palace of Versailles? What area between opposing front lines World War 1? A czar was a ruler of what country? How did European explorers affect history? Who were Vasco Nunez De Balboas brothers? Who first settled in the Hudson river valley? What was the catalyst that started World War 2? What does the word Brecher mean in Yiddish? This is an organization of nations set up after World War 2 including both of the super powers? Who is Captin America?

Who is the most Important explorer and why?