Overview
World War I was the first major world-wide modern war. Learn about the outbreak and major battles of World War I. See more »
what's inside: world war i
The events leading up to the start of World War I depict a time in the history of the world where tensions between developing nations started to clash. This section contains information about the events leading up to the start of World War I.
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Background
The sinking of the Lusitania was one of the events that brought the United States into World War I. The topics in this section cover some of the major concepts and events related to the start of the First World War. See more »
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Biographies
Some of the most famous people that were related to World War I include Earl Haig and Sir Henry Wilson. The topics in this section include biographies about some of the most important people that had a role in World War I. See more »
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featured articles
What was the Christmas Truce?
World War I lasted more than four horrific years and took the lives of 8.5 million people. So why did soldiers spontaneously put down their guns and shake hands? And why did they start fighting again?
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Edward V Rickenbacker
Rickenbacker, Edward Vernon (“Eddie”) (1890–1973), a United States aviator and America's top flying ace in World War I.
Fourteen Points
Fourteen Points, The, a set of 14 principles proposed by President Woodrow Wilson as a basis for ending World War I and for keeping the peace thereafter.
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