1597: Severyn Nalyvaiko, leader of the 1594-96 peasant and Cossack rebellion against the Polish and Ukrainian feudal lords in Ukraine and Belarus, is executed in Warsaw.
1775: Catherine II of Russia legalizes serfdom in Ukraine.
1920: The governments of the Ukrainian National Republic and Poland sign a political and a military convention whereby Poland retains Eastern Halychyna, Chelm region, Podillia, and Volyn.
1937: The Central Executive Committee of the Ukrainian SSR adopts a decree on the National Flag of the Ukrainian Soviet Socialist Republic.
1947: Polish authorities begin deporting the Ukrainian populace of Lemkivshchyna.
1979: A Ukrainian Drama and Comedy Theater opens in Kyiv (currently Kyiv Academic Drama and Comedy Theater on the Left Bank).
1990: A constituent conference convenes in Lviv and reorganizes the Ukrainian Christian Democratic Front as the Ukrainian Christian Democratic Party.
