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Westward Expansion (Begins)
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The Guilded Age (Begins)
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Westward Expansion (Ends)
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U.S. Imperialism (Begins)
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Guilded Age (Ends)
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Progressive Era (Starts)
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U.S. Imperialism (Ends)
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World War I (Begins)
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World War I (Ends)
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Progressive Era (Ends)
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The Roaring Twenties (Begins)
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The Roaring Twenties (Ends)
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The Great Depression (Begins)
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World War II (Begins)
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The Great Depression (Ends)
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World War II (Ends)
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The Cold War (Begins)
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The Civil Rights Movements (Begins)
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Vietnam War (Begins)
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The Civil Rights Movement (Ends)
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Late 20th Century (Begins)
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Vietnam War (Ends)
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The Cold War (Ends)
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Late 20th Century (Ends)
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U.S. in the 20th Century
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U.S. in the 20th Century (Present)