Question

when was world war started and what was it cause?
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Answer 1

Explanation:

The first world war started in 1914 and ended in 1918.

The immediate cause for World War 1 was the assassination of the Archduke Franz Ferdinand of Austria. The assassination was planned by a Serbian terrorist group, called The Black Hand and the man who shot Franz Ferdinand and his wife was a Bosnian revolutionary named Gavrilo Princip.

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Answer 2

The 1st world war started during the 18th century... google might give you the exact date to be 28 JULY 1914..