Question

write the main cause of Russian Revolution

Answer 1

the main cause is ...
Weakness of Russia. Underlay everything and the world war 1st is the key factor for russian revolution

Answer 2

The Russian revolution of 1917 occurred because the ruling Czarist aristocracy during the WWI lost support of the urban middle class. The chaos created by the war resulted in a surge of peasant revolution and later in the power grab by a small group of radical Socialists with the support of army in St. Petersburg.

Which led to a tripartite civil war of 1918–1922 between (1) the old elite, (2) Communists, supported by ethnic minorities and a large part of the military, (3) peasant gangs and armies. The support of peasants throughout 1919 secured the victory of Bolsheviks who established a kind of truce with them in 1922 in the form of a peasant-friendly New Economic Policy (NEP).

Stalin’s collectivization of 1928–1933, when farmers became de-facto state serfs, marked the ultimate defeat of the Russian peasant revolution and the final triumph of Communist revolutionaries.