1939 Soviet census

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The 1939 Soviet census (Russian: Всесоюзная перепись населения 1939, romanized: Vsesoyuznaya perepis naseleniya 1939, lit. '1939 All-Union Census'), conducted from January 17 to January 26, succeeded the 1937 Soviet census that was declared invalid. It happened only two years after the previous census, due to the failure of the preceding one.