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  Tanks were designed in its most powerful form in 1770 by Richard Edgeworth.
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  The first u-boat was designed by Wilhelm Bauer in 1850 but snak during its first test run.
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  Hiram Maxim made the machine gun in 1884 by doing this he made his name to be known
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  In 1914 during world war one required about 4-6 people to operate.
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  .On January 19, 1915 three german zeppelins headed to Britain, but only the L3 and L4 made it, since the L6 had a mechanical malfunction.
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  From October 1916 to January 1917 german u-boats sunk 1.4 million tons of shipping supplies.
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  In 1917 Germany started “unrestricted submarine warfare” where they can attack any ship even civilian ships.
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  In 1917, Baron Manfred von Richthofen was the most famous flyer and a successful combat pilot.His first successful kill was in 1916.
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  The first gas attack was in april 1915 at the second battle of Ypres