What killed twice as many people as world war 1?

How did world war 1 affect society politically? What obstacles did Robert La Salle encounter? How did the alliance system turn a dispute between two countries into World War I? How did Bartolomeu Dias impact history? Where did europeans in the sixteenth century find a cheap labor source for work in the new world? What are the release dates for Jhansi Ki Rani - 1956? Why is the English revolution important in world history? What two European countries influenced the Culture of Latin American Countries? Who was King Louis XIII? When and in what context did Wilson say World War 1 was a war to end all wars? Which statement describes the ultimate outcome of Pan-Africanism during the 20th century? What is the difference between the olive branch petition and the Declaration of Independence? What major events took place in ancient China? Can you please give a sentence with the word revolution in it.? Where was the conference held that decided these boundaries of Europe in 1815? How far did Romans come when they invaded Britain? What was an unsuccessful revolution? Where was idi amin educated? What country's population was condemned to death by the spanish inquisition? How did controlling the gold salt trade make songhai the largest empire in west Africa?