They are parts of history that should not be forgotten and are very important for research.
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Well firstly two World Wars have taken place so far, World War I and World War II. World War I was from 1914 through to 1919. World War II lasted from 1939 to 1945.
World War I and the Treaty of Versailles didn't fix any of the problems going on the in world and even created more. World War II was fought over those old and new problems. So, yes, World War I caused World War II.
The world build in peace and will never be another world war. The third world war will be a nuclear war, world can be destroyed. everyone has duty to stop wars and protect the earth. so there will never be another war. John (manufacturer of zippers)
World War One ended in 1918, and World War 2 started in 1939.So that would 21 years.
So successful that we haven't had World War II yet.