1918: The Council of People’s Commissars of Soviet Russia (Sovnarkom) adopt a decree setting up the Workers and Peasants’ Front.
1919: Simon Petliura becomes president of the Directory of the Ukrainian National Republic.
1945: The Yalta Conference (the wartime meeting of the heads of government of the United States, the United Kingdom, and the Soviet Union) ends in the Crimea.
1963: Kyiv hosts a conference on cultural aspects of the Ukrainian language; conference participants urge the [communist] political leadership to grant Ukrainian the official language status.
1971: The United Kingdom, USA, and USSR sign the Treaty on the Prohibition of the Emplacement of Nuclear Weapons and other Weapons of Mass Destruction on the Sea-Bed and the Ocean Floor and in the Subsoil Thereof (Seabed Treaty).
1989: [Kyiv hosts] the constituent conference of the Taras Shevchenko Ukrainian Language Society (subsequently renamed as All-Ukrainian Society “Prosvita”)
