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.
Slave rebellion
In Russia, the slaves were usually classified as kholops. A kholop's master had unlimited power over his life. Slavery remained a major institution in Russia until 1723, when Peter the Great converted the household slaves into house serfs. Russian agricultural slaves were formally converted into serfs earlier in 1679. During the 16th and 17th centuries, runaway serfs and kholops known as Cossacks, ("outlaws") formed autonomous communities in the southern steppes. There were numerous rebellions against slavery and serfdom, most often in conjunction with Cossack uprisings, such as the uprisings of Ivan Bolotnikov (1606–1607), Stenka Razin (1667–1671), Kondraty Bulavin (1707–1709), and Yemelyan Pugachev (1773–1775), often involving hundreds of thousands and sometimes millions. Between the end of the Pugachev rebellion and the beginning of the 19th century, there were hundreds of outbreaks across Russia.