Jupiter’s moon was found to have a liquid ocean under a thick crust of ice.
The Galileo probe made the discovery.
Source
The Bank of England printed the first one-pound and two-pound banknotes.
The musical 'The Sound of Music,' starring Julie Andrews, premiered.
Chemical elements Moscovium, Tennessine, and Oganesson were added to the Periodic Table of Elements.
Automatic street lights first appeared in New Milford, Connecticut, US.
Madonna featured in a Pepsi Commercial during NBC-TV's 'Cosby Show.'
