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Where was the October revolution?

Answer:
The October Revolution was part of the Russian Revolution - that started in Petrograd.
It occured on 25 October 1917 according to the Julian calendar, or 7 November 1917 according to the Gregorian calendar.
Contributor: Jondov
First answer by Jondov. Last edit by Jondov. Contributor trust: 48 [recommend contributor recommended]. Question popularity: 1 [recommend question].