post 176, 190 - the first attempt of the Ukrainian people led by Cossacks to gain freedom from Poland in 17th cent. The rebellion was suppressed.
Later on, there were more rebellions and risings in the part of Ukraine owned by Polish state. The pattern of events regularly included massacres of Polish colonisers and Jews in the areas where the unrest took place, mostly in cities and towns. Killings were done by enraged Cossacks or Rus peasants who had enough of Polish overbearing rule or the cruel exploitation by Polish lords.
E.g, Palej`s Rising of 1702-1704:
In 1699 a new Polish king Augustus II disbanded the Cossack militia and signed a peace treaty with Ottoman Turkey. Cossacks were angered by this situation, and in 1702 colonel (polkovnyk) Paliy started an open rebellion against the crown. Rebellious Cossacks massacred their traditional enemies - Polish szlachta, Catholic priests and Jews - in the area they controlled.
Palei was arrested, imprisoned for a year in a fortress and, at the request of Peter I, extradited and taken to Russia. The peasants taken prisoner, of whom there were about 70,000, had their left ears cut off to mark them as disobedient and prone to rebellion. They were not punished with death due to the lack of manpower in Ukraine. Only the leaders of the uprising were killed.