This linked the monarchs of Austria-Hungary, Germany, and Russia.
A secret alliance between Austria-Hungary, Russia, and Germany, intended to reduce tension over the Balkans.
This was an alliance between Italy, Germany, and Austria that lasted for most of World War I.
This secret treaty promised neutrality between Russia and Germany in the event that either was attacked.
This was a conference between France, Britain, and Germany. However, Germany's crude bullying pushed Britain and France closer together, leaving Germany almost completely alone.
Serbia joined Greece and Bulgaria to attack the Ottoman Empire. Disputes over the spoils of victory led to the second Balkan War.
A dispute following the First Balkan War when Bulgaria tried to claim all of the spoils of victory. Ultimately Austria intervened and forced Serbia to give up Albania.
Serbian revolutionaries living in Bosnia assassinated Franz Ferdinand, causing Austria-Hungary to give Serbia an ultimatum.
Tsar Nicholas II quickly found that a partial mobilization would be impossible, so he was forced to attack both Austria and Germany.
Following Serbia's evasive replies to its ultimatum, Austria mobilized its troops against Serbia. Germany gave Austria a 'blank check' to help with the war.
This was an alliance between Great Britain, France, and Russia in order to fight off German aggression.
Despite earlier promises that Belgium could remain neutral, Germany invaded France by means of going through Belgium. This is the event that truly started world war I.
Taking advantage of the strain of total war, Irish nationalists in Dublin tried to rise up against the British, but were put down after about a week, and their leaders were executed.
3 members of the high aristocracy in Russia murdered Rasputin, due to his power over all of Russia.
This was mainly due to Germany's use of unrestricted submarine warfare sinking the Lusitania, killing thousands.
Trotsky and other militants seized the government building and the provisional government. After that they went to the congress of Soviets, where Lenin was voted into power.
This harsh treaty ended WWI, but it also was very unfair to Germany. Parts of Germany were given to Poland, and its colonies were taken. Finally, Germany was blamed for starting the war, and had to pay reparations for all civilian damages done during the war. In addition, the treaty of Versailles formed the league of nations.