World War I, also known as the Great War, was a global conflict that originated in Europe and covered the world, lasting from July 28, 1914, to November 11, 1918. Regarded as “the war to end all wars,” it involved more than 70 million combatants, with 60 million of them being European. Due to the introduction of modern weaponry, it quickly became one of the deadliest conflicts in human history, with more than 9 million soldier deaths and 7 million civilians as a direct result of the war. Think you know your stuff about this bloody period in American history? Take this quiz and find out!