What role did the Bolsheviks play in the October Revolution?

The Bolsheviks played a key role in the October Revolution. The fact is that at that time the country was very dissatisfied with the current government. People became poorer, protest moods grew. The Bolsheviks themselves added fuel to the fire, constantly criticizing the authorities, telling people how to make them live better, constantly shouting beautiful slogans. It was the Bolsheviks who, in fact, organized this revolution, and as a result, it was they who came to power in all the republics, which later united in the USSR.