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The Heir to Austria-Hungary's throne, Archduke Franz Ferdinand, was shot and killed in Bosnia. The shooter was Gavrilo Princip who is a member of the Black Hand group. Archduke Franz was shot after the driver took a wrong turn on the way to the hospital. -
Austria-Hungary declared war on Serbia a month after the assassination of Archduke Franz Ferdinand. -
While War was happening in Europe, President Wilson declares the USA to be neutral, neither helping nor attacking any of the European countries at war. -
The first battle of WWI was the Battle of Marne. This battle was between France and Great Britain, which took place in Marne, France. Germany won this battle. -
Germany declared that they will be using unrestricted warfare against all ships, no matter if they are involved in the war or not. -
A British Passenger Liner named The Lusitania was sunken by a German Submarine, killing 1200 innocent passengers, some being American. -
The Battle of VErdun was a Battle between France and Germany, it was known as the longest and worst battle of WWI. This Battle lasted 10 months. -
The Battle of Jutland was between The United Kingdom and Germany, it was known as the largest naval battle and it ended with an inconclusive victory. -
The Battle of Somme was caused as the British army attacked German army troops in the Somme river area. This Battle caused a big crater and wiped out an entire community. -
Germany sent a coded message to Mexico to ask them to attack the US if the US joins the war in exchange for helping Mexico get back land. Mexico Declined and informed the Us about the message. -
Germany decided to return to using unrestricted submarine warfare, which caused the US to join the war. -
The USA joins the war after being affected by Germany, and President Wilson declares joining the war against Germany and it's allies. -
The Russian Army was tired of war and the poor conditions that were given for the war so they protested and revolted. The treaty of Brest-Litovsk was signed and Russia was out of the war. -
With the agreement of both sides deciding to stop fighting, the war stopped. -
The Treaty of Versailles was signed between countries and the war was officially over.