When did the second Russian revolution start

A August, 1905
B February, 1917
C October, 1917
D March, 1921

Correct Answer: October, 1917

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.

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