1651 The Battle of Beresteczko between Poland and Ukraine starts.
1673 Second Battle of Khotyn in Ukraine: Polish-Lithuanian Commonwealth forces under the command of Jan Sobieski defeat the Ottoman army. In this battle, rockets made by Kazimierz Siemienowicz are successfully used.
1917 Ukraine is declared a republic.
1918 Western Ukraine gains its independence from the Austro-Hungarian Empire.
1941 World War II: On Jewish New Year Day, the German SS murder 6,000 Jews in Vinnytsya, Ukraine. Those are the survivors of the previous killings that took place a few days earlier in which about 24,000 Jews were executed.
1942 World War II: Second Battle of Kharkov: in eastern Ukraine, Red Army forces under Marshal Semyon Timoshenko launch a major offensive from the Izium bridgehead, only to be encircled and destroyed by the troops of Army Group South two weeks later.
1942 Holocaust in Chortkiav, western Ukraine: At 2.30 am the German Schutzpolizei starts driving Jews out of their houses, divides them into groups of 120, packs them in freight cars and deports 2000 to Belzec death camp. 500 of the sick and children are murdered on the spot.
1942 In Dunaivtsi, Ukraine, Nazis murder 2,588 Jews.
1991 32 miners are killed when a coal mine catches fire in the Donbass region of Ukraine releases toxic gas.
1991 Ukraine declares its independence from the Soviet Union.
2004 The Orange Revolution begins in Ukraine, resulting from the presidential elections.
2006 Pulkovo Aviation Enterprise Flight 612 crashes near the Russian border over eastern Ukraine, killing all 170 people on board.
2006 Funeral service takes place for those executed at Bykivnia forest, outside Kiev, Ukraine. 817 Ukrainian civilians (out of some 100,000) executed by Bolsheviks at Bykivnia in 1930s – early 1940s are reburied.