Pugachev's Rebellion
Pugachev's Rebellion (Peasants' War 1773-75, Cossack Rebellion) of 1773-75 was the principal revolt in a series of popular rebellions that took place in the Russian Empire after Catherine II seized power in 1762. It began as an organized insurrection of Yaik Cossacks headed by Yemelyan Pugachev, a disaffected ex-lieutenant of the Imperial Russian Army, against a background of profound peasant unrest and war with the Ottoman Empire. After initial success, Pugachev assumed leadership of an alternative government in the name of the assassinated Tsar Peter III and proclaimed an end to serfdom. This organized leadership presented a challenge to the imperial administration of Catherine II.
Kiev Bolshevik Uprising
The Kievan Bolsheviks headed by Georgiy Pyatakov (active member of the Central Rada) firmly stood on the Lenin's principles and they did not agree with the position of the Central Rada. The same day they left the State Committee for the protection of the revolution and held a joint meeting (congress) with representatives of worker's and soldier's deputies councils, trade unions, factory presiding committees (fabzavkom), and military units (in the building of the Bergonie theater). The meeting accepted the resolution for the support of the Bolshevik Revolution in Petrograd and declared the power of Soviet government. With their next decision the congress elected revkom consisting of such Bolsheviks as Jan Hamarnyk, Oleksandr Horwits, Andriy Ivanov, Isaac Kreysberg, Volodymyr Zatonsky, Ivan Kulyk, and others to whom was planned to transfer the power. All of them also initiated the January Uprising couple of months later to support the sack of Kiev by the advancing Bolshevik forces from Russian SFSR and installation of the Soviet government in Ukraine.