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4 October
Dates in History
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1957—Soviet Union successfully launched Sputnik – the world's first artificial Earth satellite. It completed 1440 orbits around Earth, exciting worldwide sincere wonder and admiration. 4 months later it burnt up in the atmosphere. 
1916—Vitaly Ginsburg, outstanding Russian physicist, is born. | He wins Nobel prize in Physics in 2003 “for pioneering contributions to the theory of superconductors and superfluids”. |
