The Treaty of Florence was signed, which ended the war between the French Republic and the Kingdom of Naples.
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Stanley Kramer became the first person to receive a star on the Hollywood Walk of Fame.
The world's first weightlifting championship took place in London, England.
Roman Emperor Valentinian I made his brother, Flavius Valens, his co-emperor.
Bank of Tokyo and Mitsubishi Bank merged to become the world's largest bank.
A nuclear disaster occurred at Three Mile Island in Pennsylvania, US.
