A main cause of the February Revolution was the riots and protests against Czar Nicholas II. The strikes consisted of around 90,000 men and women who were upset about inflation and the lack of food available to them. On March 10, a mob of workers destroyed many police stations.
The effect of the Februrary Revolution was the abdication of Czar Nicholas II. In March of 1917, the protests forced him to abdicate and leave his power. After a secret meeting far after his abdication, the Czar, his wife, and his kids were all sentenced to death.
The Absolue Monarchy was overthrown when Vladamir Lenin took over Russia. He called for a Soviet government that would consist of soldiers, peasants, and workers. They occupied government buildings in tactical spots, all while Lenin was leading the way.