When was world war one and world war two?
World war 1 started on the 28th of July 1914, and finished on the 11th of November 1918. World war 2 started on the 1st of September 1939 and finished 2nd of September 1945
World War One lasted from 28 July 1914 to 11 November 1918. World War Two is generally said to have begun on 1 September 1939, and ended on 15 August 1945.
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