Question: when did the soviet union start and end
[{'answer': 'in Eurasia', 'provenance': [{'wikipedia_id': '26779', 'title': 'Soviet Union', 'start_paragraph_id': 1, 'start_character': 116, 'end_paragraph_id': 1, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26779', 'title': 'Soviet Union', 'section': 'Section::::History.:Stalin era.:1930s.\n', 'start_paragraph_id': 40, 'end_paragraph_id': 40, 'meta': {'evidence_span': ['In 1939, the Soviet Union made a dramatic shift toward Nazi Germany. Almost a year after Britain and France had concluded the Munich Agreement with Germany, the Soviet Union made agreements with Germany as well, both militarily and economically during extensive talks. The two countries concluded the MolotovRibbentrop Pact and the GermanSoviet Commercial Agreement in August 1939. The nonaggression pact made possible Soviet occupation of Lithuania, Latvia, Estonia, Bessarabia, northern Bukovina, and eastern Poland. In late November, unable to coerce the Republic of Finland by diplomatic means into moving its border back from Leningrad, Joseph Stalin ordered the invasion of Finland. In the east, the Soviet military won several decisive victories during border clashes with the', 'In 1939, the Soviet Union made a dramatic shift toward Nazi Germany. Almost a year after Britain and France had concluded the Munich Agreement with Germany, the Soviet Union made agreements with Germany as well, both militarily and economically during extensive talks. The two countries concluded the MolotovRibbentrop Pact and the GermanSoviet Commercial Agreement in August 1939. The nonaggression pact made possible Soviet occupation of Lithuania, Latvia, Estonia, Bessarabia, northern Bukovina, and eastern Poland. In late November, unable to coerce the Republic of Finland by diplomatic means into moving its border back from Leningrad, Joseph Stalin ordered the invasion of Finland. In the east, the Soviet military won several decisive victories during border clashes with the\rhighlight sentence(s) containing evidence, not only the answer']}}]}, {'provenance': [{'wikipedia_id': '38502629', 'title': 'History of the Soviet Union', 'section': 'Section::::1953–1964.\n', 'start_paragraph_id': 10, 'end_paragraph_id': 10, 'meta': {'evidence_span': ['. In the USSR, the eleven-year period from the death of Joseph Stalin (1953) to the political ouster of Nikita Khrushchev (1964), the national politics were dominated by the Cold War; the ideological U.S.USSR struggle for the planetary domination of their respective socioeconomic systems, and the defense of hegemonic spheres of influence. Nonetheless, since the mid-1950s, despite the Communist Party of the Soviet Union (CPSU) having disowned Stalinism, the political culture of Stalinisman omnipotent General Secretary, anti-Trotskyism, a five-year planned economy (post-New Economic Policy), and repudiation of the MolotovRibbentrop Pact secret protocolsremained the character of Soviet society until the accession of Mikhail Gorbachev as leader of the CPSU in 1985.', '. In the USSR, the eleven-year period from the death of Joseph Stalin (1953) to the political ouster of Nikita Khrushchev (1964), the national politics were dominated by the Cold War; the ideological U.S.USSR struggle for the planetary domination of their respective socioeconomic systems, and the defense of hegemonic spheres of influence. Nonetheless, since the mid-1950s, despite the Communist Party of the Soviet Union (CPSU) having disowned Stalinism, the political culture of Stalinisman omnipotent General Secretary, anti-Trotskyism, a five-year planned economy (post-New Economic Policy), and repudiation of the MolotovRibbentrop Pact secret protocolsremained the character of Soviet society until the accession of Mikhail Gorbachev as leader of the CPSU in 1985.\rhighlight sentence(s) containing evidence, not only the answer']}}]}, {'provenance': [{'wikipedia_id': '26779', 'title': 'Soviet Union', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a Marxist-Leninist sovereign state in Eurasia that existed from 1922 to 1991. Nominally a union of multiple national Soviet republics, its government and economy were highly centralized. The country was a one-party state, governed by the Communist Party with Moscow as its capital in its largest republic, the Russian Soviet Federative Socialist Republic (Russian SFSR). Other major urban centres were Leningrad, Kiev, Minsk, Tashkent, Alma-Ata, and Novosibirsk. It spanned over 10,000 kilometres (6,200\xa0mi) east to west across 11 time zones, and over 7,200 kilometres (4,500\xa0mi) north to south. It had five climate zones: tundra, taiga, steppes, desert and mountains.', 'The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a Marxist-Leninist sovereign state in Eurasia that existed from 1922 to 1991', 'The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a Marxist-Leninist sovereign state in Eurasia that existed from 1922 to 1991. Nominally a union of multiple national Soviet republics, its government and economy were highly centralized. The country was a one-party state, governed by the Communist Party with Moscow as its capital in its largest republic, the Russian Soviet Federative Socialist Republic (Russian SFSR). Other major urban centres were Leningrad, Kiev, Minsk, Tashkent, Alma-Ata, and Novosibirsk. It spanned over 10,000 kilometres (6,200\xa0mi) east to west across 11 time zones, and over 7,200 kilometres (4,500\xa0mi) north to south. It had five climate zones: tundra, taiga, steppes, desert and mountains.\rhighlight sentence(s) containing evidence, not only the answer']}}]}, {'provenance': [{'wikipedia_id': '26779', 'title': 'Soviet Union', 'section': 'Section::::History.\n', 'start_paragraph_id': 17, 'end_paragraph_id': 17, 'meta': {'evidence_span': ['The last Russian Tsar, Nicholas II, ruled the Russian Empire until his abdication in March 1917 in the aftermath of the February Revolution, due in part to the strain of fighting in World War I, which lacked public support. A short-lived Russian Provisional Government took power, to be overthrown in the October Revolution (N.S. 7 November 1917) by revolutionaries led by the Bolshevik leader Vladimir Lenin. The Soviet Union was officially established in December 1922 with the union of the Russian, Ukrainian, Byelorussian, and Transcaucasian Soviet republics, each ruled by local Bolshevik parties. Despite the foundation of', 'The last Russian Tsar, Nicholas II, ruled the Russian Empire until his abdication in March 1917 in the aftermath of the February Revolution, due in part to the strain of fighting in World War I, which lacked public support. A short-lived Russian Provisional Government took power, to be overthrown in the October Revolution (N.S. 7 November 1917) by revolutionaries led by the Bolshevik leader Vladimir Lenin. The Soviet Union was officially established in December 1922 with the union of the Russian, Ukrainian, Byelorussian, and Transcaucasian Soviet republics, each ruled by local Bolshevik parties. Despite the foundation of\rhighlight sentence(s) containing evidence, not only the answer']}}]}]