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  Ends in 1970
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  Ends in 1921
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  Ended in 1918
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  Ended in 1920
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  The sinking of the Cunard ocean liner RMS Lusitania occurred on Friday, 7 May 1915 during the First World War, as Germany waged submarine warfare against the United Kingdom of Great Britain and Ireland.
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  Ends in 1919
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  The 19th Amendment to the U.S. Constitution granted American women the right to vote.
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  President Harding declared peace in WW1 with Germany, Australia, and Hungary.
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  Ended May 5
The Great Mississippi flood occurs affected over 700,000 people through death, injurry, or destruction to house. - 
  
  Martin Luther King Jr, was born on January 15th, 1929 in Atlanta, Georgia. This was the date a big civil rights activists was born.