The European Union Parliament declared single-use plastics were to be banned by 2021.
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Roman Emperor Valentinian I made his brother, Flavius Valens, his co-emperor.
The Vienna Philharmonic Orchestra performed its first concert.
The UK issued a new 12-sided £1 coin into circulation.
Stanley Kramer became the first person to receive a star on the Hollywood Walk of Fame.
A nuclear disaster occurred at Three Mile Island in Pennsylvania, US.
