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World War I
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World War I Article

What was the significance of World War I?

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Four imperial dynasties—the Habsburgs of Austria-Hungary, the Hohenzollerns of Germany, the sultanate of the Ottoman Empire, and the Romanovs of Russia—collapsed as a direct result of the war, and the map of Europe was changed forever. The United States emerged as a world power, and new technology made warfare deadlier than ever before.

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