"...for the first time [it] awoke feeling and class-consciousness in millions upon millions as if by an electric shock... the proletarian mass... quite suddenly and sharply came to realise how intolerable was that social and economic existence which they had patiently endured for decades in the chains of capitalism. Thereupon there began a spontaneous general shaking of and tugging at these chains."
This is Rosa Luxemburg's description in The Mass Strike of the impact of the strike wave that swept the Russian Empire in January and February 1905.
More mass strikes followed in October and December, leaving the Tsar's autocratic regime battered if not yet overthrown. In all there were 23 million strike days in Russia during 1905, far outnumbering anything seen previously in Russia or the more advanced industrialised countries.