June 23, 1888: the Bohdan Khmelnytsky statue is unveiled on St. Sofiya Square in Kyiv. June 23, 1917: Presidium of the Central Rada is elected, headed by Mykhailo Hrushevsky. June 24, 1872: a city public library opens in Kherson. June 24, 1934: top-level government and party offices are transferred from Kharkiv to Kyiv. June 25, 1941: the Nazi Wehrmacht forces the Soviets to retreat from Lutsk. June 25, 1992: the Black Sea Economic Commonwealth is established, composed of 11 countries, among them Ukraine. June 26: International Day of Struggle against Addiction and Drug Trafficking. June 26, 1919: the first congress of all Ukrainian communist youth organizations is held in Kyiv, establishing the Communist Youth League (Komsomol) of Ukraine. June 27, 1834: the first students are enrolled in Kyiv University. June 27, 1964: Taras Shevchenko statue is unveiled in Washington. June 28: Ukrainian Constitution Day. June 28, 1783: the Russian Defense Ministry orders the reorganization of Left-Bank Cossack regiments as regular Russian army regiments. June 28, 1918: the General Secretariat of the Ukrainian Central Rada is formed, headed by Volodymyr Vynnychenko. June 29: Youth Day. June 29, 1945: the USSR and Czechoslovakia sign a treaty joining Transcarpathia to Soviet Ukraine.






