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  Spans 1910-1930
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  1913-1921
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  From 1914-November 1918
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  The Lusitania was the largest passenger ship at the time. It sank on May 7th by a German U-Boat. This got the USA into world war one.
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  These were in a speech by Wilson to have world peace. Even though they may not have solved the world's problems forever they help make the treaty to end world war one.
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  This lasts until December 1920
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  This gave women the right to vote. This is important in history because it gave women more rights.
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  The stock market crash lead to the great depression. A stock market crash is when the stocks plummet suddenly.