ANSWERS: 1
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Hula hoops became a national craze in 1958. Produced by the Wham-O toy company under the direction of Richard P. Knerr and Arthur K. Melin, more than 100 million hula hoops were sold during the first two years of production.
Source:
loti.com: The History of the Hula Hoop
ideafinder.com: Hula Hoop History - Invention of the Hula Hoop
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