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Archduke Franz Ferdinand is assassinated
While on a trip to Serbia, Archduke Franz Ferdinand and his wife Sophie were assassinated by Gavrilo Princip. This is the trigger for World War 1. -
Austria-Hungary Enters World War 1
Austria-Hungary was dissatisfied with the response to their ultimatum after the killing of their Archduke Franz Ferdinand by a Serbian terrorist group called the Black hand so they declared war on Serbia. -
Russia enters world war 1
They were bound to a treaty with Serbia that stated if Serbia was invaded by another country they would have to come to their aid, leading to Russia joining world war 1 -
Germany enters world war 1
Germany was tied to a treaty with Austria-Hungary so they would come to their defense if there was an attack on the country. The Germans viewed the mobilization of Russian troops as an act of war on Austria-Hungary and declared war on Russia. -
France joins world war 1
France was a treaty bound to Russia. After Germany declared war on Russia, they also joined the war on the side of Russia. -
Japan enters the war
Japan becomes the first non European country to join the war. They had a military agreement with Britain that they wanted to honor, so they declared war Germany. -
The United States enters World War 1
President Woodrow Wilson tried to stay as neutral as possible during the war, but after the sinking of the Lusitania and the sending of the Zimmerman note to Mexico from Germany, the US felt they needed to go into war. They were on the side of the Triple Entente. -
The Treaty of Brest-litovsk is Signed
After the revolution, Grigori Sokolnikov rose to power promising that he would take the troops out of the war. He then signed the treaty of Brest-litovsk with the Central Powers officially ending their involvement in the war. -
The Armisists is Signed
David Lloyd George of Britain, George Clemenceau of France, and Woodrow Wilson of the United States were the powerful names at the signing of the Treaty of Versailles, which ended world war 1