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jan 9, 1939 - Invention of war helicopter

Description:

The helicopter was invented a long time before but had never been armed before, now this was a super weapon

Added to timeline:

Millitary Advancements from 1800-1950

ByNathan O'Sullivan

14 Dec 2018

1

1

419

Date:

jan 9, 1939

Now

~ 87 years ago

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