События
June 28th
Assasination of Archduke Ferdinand.July 28th
Austria-Hungaria declares war on SerbiaAugust 1st
Germany declares war on RussiaApril 22nd
First use of Mustard GasApril 1916
British troops surrender in MesapotamiaApril 6th
US declares war on GermanyMarch
Czar Nicholas II forced to AbdicateMay 7th
German uboat sank LusitaniaJune 28th
Treaty of Vercailes was signedJune 15th
the Espionage Act passedAugust 3rd
Germany declares war on FranceAugust 4th
Britain declares war on GermanyEarly 1917
Germany gives orders to increase U-boat productionNovember 11th
Armstice signed to end the warApril 1918
The Royal Flying Corps and the Royal Naval Air Service merged to form the Royal Air Force.
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