The European Union Parliament declared single-use plastics were to be banned by 2021.
Source
The Vienna Philharmonic Orchestra performed its first concert.
Stanley Kramer became the first person to receive a star on the Hollywood Walk of Fame.
Bank of Tokyo and Mitsubishi Bank merged to become the world's largest bank.
Roman Emperor Valentinian I made his brother, Flavius Valens, his co-emperor.
A nuclear disaster occurred at Three Mile Island in Pennsylvania, US.