Which European country lead the way in overseas exploration?

What event in the mid 1700s changed human population? How did the steamboat impact on the world? What group made up the largest majority of French Society? What is the advantages and disadvantages of the sphere of influence? Who killed the Aztecs? Which group was primarily responsible for taking care of the people's spirituality on the manor? WHo searched to resolve turmoil in China? Explain major domestic developments after 1945 with emphasis on postwar prosperity? What alliances did Bismarck form? Is World War I a European war? What are facts on the feudal system? Was Lancaster the biggest slave trade town in England? After world war 2 population in rural areas did what? How much rice is produced world wide each year? What European countries were allies during ww1? What happened in 432 AD? How Many Africans were enslaved from 15-19th Century? Where were the trenches for most of the war in ww1? What treaty ended ww1 and what was its effect on Germany? What does zheng he mean?