Casimir III the GreatCasimir III the Great (Kazimierz III Wielki; 30 April 1310 – 5 November 1370) reigned as the King of Poland from 1333 to 1370. He also later became King of Ruthenia in 1340, and fought to retain the title in the Galicia-Volhynia Wars. He was the last Polish king from the Piast dynasty. Casimir inherited a kingdom weakened by war and made it prosperous and wealthy. He reformed the Polish army and doubled the size of the kingdom. He reformed the judicial system and introduced a legal code, gaining the title "the Polish Justinian".
Olga of KievOlga (Ольга; Helga; 890–925 – 11 July 969) was a regent of Kievan Rus' for her son Sviatoslav from 945 until 960. Following her baptism, Olga took the name Elenа. She is known for her subjugation of the Drevlians, a tribe that had killed her husband Igor. Even though it was her grandson Vladimir who adopted Christianity and made it the state religion, she was the first ruler to be baptized. Olga is venerated as a saint in the Eastern Orthodox Church with the epithet "Equal to the Apostles". Her feast day is 11 July.
Council of EuropeThe Council of Europe (CoE; Conseil de l'Europe, CdE) is an international organisation established in the wake of World War II to uphold human rights, democracy and the rule of law in Europe. Founded in 1949, it brings together 46 member states, with a population of approximately 675 million; it operates with an annual budget of approximately 500 million euros. The organisation is distinct from the European Union (EU), although people sometimes confuse the two organisations - partly because the EU has adopted the original European flag, designed for the Council of Europe in 1955, as well as the European anthem.
ChernobylChernobyl (tʃɜːrˈnoʊbəl , UKalsotʃɜːrˈnɒbəl ; Чернобыль, tɕɪrˈnobɨlj) or Chornobyl (Чорнобиль, tʃorˈnɔbɪlj) is a partially abandoned city in the Chernobyl Exclusion Zone, situated in the Vyshhorod Raion of northern Kyiv Oblast, Ukraine. Chernobyl is about north of Kyiv, and southwest of the Belarusian city of Gomel. Before its evacuation, the city had about 14,000 residents (considerably less than neighboring Pripyat).
Partitions of PolandThe Partitions of Poland were three partitions of the Polish–Lithuanian Commonwealth that took place toward the end of the 18th century and ended the existence of the state, resulting in the elimination of sovereign Poland and Lithuania for 123 years. The partitions were conducted by the Habsburg monarchy, the Kingdom of Prussia, and the Russian Empire, which divided up the Commonwealth lands among themselves progressively in the process of territorial seizures and annexations.
Battle of StalingradThe Battle of Stalingrad (Schlacht von Stalingrad ˈʃlaxt fɔn ˈʃtaːlɪnˌgʁaːt; Сталинградская битва; 23 August 1942 - 2 February 1943) was a major battle on the Eastern Front of World War II where Nazi Germany and its allies unsuccessfully fought the Soviet Union for control of the city of Stalingrad (later renamed Volgograd) in Southern Russia. The battle was marked by fierce close-quarters combat and direct assaults on civilians in air raids, with the battle epitomizing urban warfare.
Mikhail GorbachevMikhail Sergeyevich Gorbachev (2 March 1931 – 30 August 2022) was a Soviet and Russian politician who served as the eighth and final leader of the Soviet Union from 1985 to the country's dissolution in 1991. He served as General Secretary of the Communist Party of the Soviet Union from 1985 and additionally as head of state beginning in 1988, as Chairman of the Presidium of the Supreme Soviet from 1988 to 1989, Chairman of the Supreme Soviet from 1989 to 1990 and the only President of the Soviet Union from 1990 to 1991.
Sea of AzovThe Sea of Azov (Crimean Tatar: Azaq deñizi; Azovskoye more; Azovs'ke more) is an inland shelf sea in Eastern Europe connected to the Black Sea by the narrow (about ) Strait of Kerch, and is sometimes regarded as a northern extension of the Black Sea. The sea is bounded by Russia on the east, and by Ukraine on the northwest and southwest, currently under Russian occupation. It is an important access route for Central Asia, from the Caspian Sea via the Volga-Don Canal.
President of UkraineThe president of Ukraine (Prezydent Ukrainy) is the head of state of Ukraine. The president represents the nation in international relations, administers the foreign political activity of the state, conducts negotiations and concludes international treaties. The president is directly elected by the citizens of Ukraine for a five-year term of office (whether the presidential election is early or scheduled), limited to two terms consecutively. The president's official residence is the Mariinskyi Palace, located in the Pechersk district of the capital Kyiv.
Catherine the GreatCatherine II (born Sophie of Anhalt-Zerbst; 2 May 1729 - 17 November 1796), most commonly known as Catherine the Great, was the reigning empress of Russia from 1762 to 1796. She came to power after overthrowing her husband, Peter III. Under her long reign, inspired by the ideas of the Enlightenment, Russia experienced a renaissance of culture and sciences, which led to the founding of many new cities, universities, and theatres, along with large-scale immigration from the rest of Europe and the recognition of Russia as one of the great powers of Europe.
