WORLD HISTORY

Detailed explanation-1: -On November 6 and 7, 1917 (or October 24 and 25 on the Julian calendar, which is why the event is often referred to as the October Revolution), leftist revolutionaries led by Bolshevik Party leader Vladimir Lenin launched a nearly bloodless coup d’état against the Duma’s provisional government.

Detailed explanation-2: -Two revolutions took place in 1917. The first was commonly referred to as the February Revolution. It overthrew the imperial government. The second, the Bolshevik Revolution, brought the Bolsheviks to power.

Detailed explanation-3: -Increasing governmental corruption, the reactionary policies of Tsar Nicholas II, and catastrophic Russian losses in World War I contributed to widespread dissatisfaction and economic hardship. In February 1917 riots over food scarcity broke out in Petrograd (St. Petersburg).

Detailed explanation-4: -Soviet Russia covers 1917–1922 and Soviet Union covers the years 1922 to 1991. After the Russian Civil War (1917–1923), the Bolsheviks took control. They were dedicated to a version of Marxism developed by Vladimir Lenin.