Nine thousand scientists from 43 nations signed a petition to ban nuclear testing.
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Avezzano earthquake claimed 30,000 lives in Italy.
Industrialist Henry Ford's method to construct auto bodies from plastic was patented.
The most destructive riot in Constantinople's history, the Nika Riots, began during a chariot race.
Galileo Galilei discovered Callisto, the fourth moon of Jupiter.
Johnny Cash recorded his iconic live album, At Folsom Prison.
