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United States 1950s: A scientist operates a robotic arm and a hook via remote control to handle materials in a nuclear testing chamber / Bridgeman Images
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Party leaders make funeral speeches from the wooden mausoleum on Red Square, and Kirov and Bukharin talk excitedly, late 1920s / Bridgeman Images
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Ipatiev House in Ekaterinburg, Sverdlovsk, where Tsar Nicholas II and the Russian Imperial family were shot to death on 16 July 1918, 1943 / Bridgeman Images
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Tsar Nicholas II and other members of the Imperial Russian family play tennis while on holiday in the Gulf of Finland, 1909-11 / Bridgeman Images
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Stalin's 70th birthday, 21 December 1949: Exhibitions and events from around the USSR, including Tbilisi, Baku and Bakumi / Bridgeman Images