During the 1905 Russian Revolution Bolsheviks in Ukraine guided by decisions of the 3rd Congress led working people to fight against autocracy. In more than 50 cities and settlements were created Soviets of working deputies. In December 1905 Bolsheviks led number of armed uprisings in Ukraine, among which were in Horlivka, Alexandrovsk (Zaporizhia), Kharkiv. Kyiv, Mykolaiv and many other cities were covered with strike action. In course of the revolution the RSDLP organizations in Ukraine grew significantly and in 1907 they were accounted for over 20,000 men. Organizers and leaders