The Seven Years' War lasted from 1756-1763. It involved many of the great powers of the time. See 'related links' for more information.
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There have been two world wars in the history of the Earth. The first world war lasted between 1914 to 1918 and the second world war lasted from 1939 to 1945.
They thought it would be over by Christmas..... It lasted from August 1914 to November 1918
The greatest impact on Canada was as a result of World War II due to Canada's extensive effort in this war as opposed to World War I.
it lasted for 1566 days :( <3
World War I began in 1914 to 1918, it lasted a total of 4 years.