When serfdom was abolished in 1861, peasantry and poverty persisted and increased, fueling early revolutionaries
A legislative parliament called the State Duma was established in 1906, but Tsar Nicholas II heavily resisted moving from absolute to constitutional monarchy
1914, Russia enters WWI, leading to millions of deaths. A losing fight, poor leadership, resentment towards the upper class/officers, etc. all aggrandized revolutionary sentiments
As WWI continued, workers' councils, called "Soviets" and the Bolsheviks were rising up against the Tsarists and gaining momentum in revolutionary ideas and efforts for the betterment of the people and workers
The Bolsheviks and their Red Army (workers, peasants, and revolutionaries lead by Vladimir Lenin) stormed the Winter Palace in 1917. This lead to the end of the Tsars, the beginning of Soviet Russia, and an armistice taking Russia out of WWI
1917-1923, the Workers' and Peasants' Red Army emerged victorious from a civil war withe the Anti-Communist White Army. This war included the execution of the Romanov Family, famine, and 5 million deaths. In December 1922, the USSR was born.