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Hydrophones Are Invented
Hydrophones were first invented to detect icebergs after the sinking of Titanic. They were re-purposed in WWI to detect submarines underwater. -
Assasination of Archduke Franz Ferdinand
The assassination of Franz Ferdinand and his wife was the spark of World War I. Austria used their deaths as an excuse to declare war against Serbia (as a Serb was the murderer) making everyone choose sides. -
Submarines Are Used in WWI
Both British and German navies start to make use of their submarines against enemy warships. -
Mills Bomb Is Used
The Mills Bomb was the first hand grenade of it's time, weighed 1.25 pounds and had a 4 second delay. It became popularized trench warfare. -
Germany Starts Using Chemical Warfare
Germany was the front runner in popularizing chemical warfare in WWI. This was the first full-scale deployment of chemical agents and it was used on the French in the Second Battle of Ypres. -
Flamethrowers Are Used In WWI
Though the flamethrower is an extremely dangerous weapon, it's main use was as a psychologically terrifying weapon. It was used to flush soldiers out of their trenches and into the open to be shot. They were first used in battle against the British. -
Tanks Are Used In WWI
Invented by Lance de Mole, tanks were first used by the British at the battle of the Somme. They were meant to protect the soldiers inside while still allowing them to advance on the battlefield. -
Russia Exits WWI
Russia exited the war due to food/fuel shortages and major population loss. They later signed a treaty with Germany that officially ended their involvement in the war. They also couldn't continue to fight as they were undergoing a revolution. -
USA Enters WWI
The US finally entered the war on the side of the Allies due to several offences made by Germany; they made many submarine attacks against ships in British waters resulting in many American casualties, and they promised Mexico support in reclaiming conquered land in return for support in the war. -
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Spanish Influenza Pandemic
The Spanish Flu began near the tail end of WWI, infecting over 500 million people around the world, and killing 50 million, even more casualties than the war itself. -
The Signing of the Treaty of Versailles
The Treaty of Versailles was meant to punish Germany and meet the goals of various Allied Powers, but actually angered many nations and was one of the causes of World War 2.
