Nine thousand scientists from 43 nations signed a petition to ban nuclear testing.
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Walt Disney's Mickey Mouse comic strip was published for the first time.
Center left-wing Independent Labour Party was formed in Britain with Keir Hardie as the leader.
A meteorite that landed in Australia in the 1960s revealed stardust up to 7 billion years old.
Avezzano earthquake claimed 30,000 lives in Italy.
Industrialist Henry Ford's method to construct auto bodies from plastic was patented.
