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World War I lasted from July 1914 (when Austria-Hungary declared war on Serbia) to November 1918 (when an armistice was declared). Thanks for reading !! XD

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13y ago

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It lasts for 53 months or we can tell it as 4 years and 3 months.

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13y ago
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1914-1918

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15y ago
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Q: How many months did World War 1 last?
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