Jupiter’s moon was found to have a liquid ocean under a thick crust of ice.
The Galileo probe made the discovery.
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The Republic of Texas declared independence from Mexico during the Texas Revolution.
The musical 'The Sound of Music,' starring Julie Andrews, premiered.
The Bank of England printed the first one-pound and two-pound banknotes.
The Concorde airplane was tested for the first time in Toulouse, France.
Chemical elements Moscovium, Tennessine, and Oganesson were added to the Periodic Table of Elements.
