Russian Revolution

The Russian Revolution happened because of a common reason. The reason is because the citizens of Russia was mistreated. Like most other revolutions, people just get enough and tired of the same treatment day after day. So their next move is to change by over throwing the official in charge. Their were two revolutions, the February and the October Revolution. The February revolution was the removal of Tsar Nicholas II from power. The October revolution was the overturn the government and establish the Soviet Union. 

Causes of WWI

There are a few causes for the beginning of WWI. One reason is the assassination of Franz Ferdinand. The assassination gave Austria-Hungary a reason to attack Serbia. After Austria-Hungary declared war on Serbia, other countries joined in to either help attack or defend. Another reason was because of Militarism. Militarism kind of gave rivalry between themselves and other countries because they would not want their rivals to have a bigger military.

They would keep improving their military until they would use it against who had a weaker military. The collapse of the alliance system is also a cause. When one country who doesn't agree with another, the enemy country may ally with them to give them an edge. Having more countries on your side may help you greatly because of their support. That are some causes I think influenced WWI.