What killed twice as many people as world war 1?

What development most influenced the spread of globalization in the 20th century? What belief caused Serb nationalists to come into conflict with Austria-Hungary in the years leading up to World War 1? What things did America give the World? What important agreement did the berlin confrence reach in 1885? How were countries formed? What lit Buckingham Palace before gas lamps? What was life like in 1977? In brief what is Great Britain England? Many Americans believed that could signal the beginning of a communist revolution in America? Structural realists view the world in terms of? Whose fault is WW1? How did the American Revolution affect England France and Spain? What are major cities in the pacific region? What were the failures of nehru as PM of India? What were the feudal dues during the French Revolution? What was the name of the queen who bathed in the blood of virgins cause she thought it kept her young? Why does Lincoln believe that the war will have an impact on the entire world? How did the first nations people react to the eurapeons? What pacific island did plantation owners take over? Were there any guns that were used in both WW1 and WW2?