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Erno Rubik, signs a Rubik’s cube during an event to mark the 40th anniversary of the puzzle toy in Jersey City, New Jersey, April 26, 2014. REUTERS/Eduardo Munoz (UNITED STATES – Tags: SOCIETY ANNIVERSARY)
Erno Rubik, signs a Rubik’s cube during an event to mark the 40th anniversary of the puzzle toy in Jersey City, New Jersey, April 26, 2014. REUTERS/Eduardo Munoz (UNITED STATES – Tags: SOCIETY ANNIVERSARY)