Category
page 11933 in the Soviet Union
Osip Mandelstam
Russian poet and essayist (1891-1938)
Nazino affair
Soviet-era prison island event
Kazym rebellion
1931–1934 uprisings by Khanty and Nenets in the Soviet Union

Stalin Epigram
poem by Osip Mandelstam
Italo-Soviet Pact
bilateral treaty between the Soviet Union and fascist Italy
Belarusian orthography reform of 1933
Belarusian orthography reform
USSR-1
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USSR-1 () was a record-setting, hydrogen-filled Soviet Air Forces high-altitude balloon designed to seat a crew of three and perform scientific studies of the Earth's stratosphere. On September 30, 1933, USSR-1 under Georgy Prokofiev's command set an unofficial world altitude record of .