The Republic of Texas declared independence from Mexico during the Texas Revolution.
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The US spacecraft Pioneer 10 launched.
Chemical elements Moscovium, Tennessine, and Oganesson were added to the Periodic Table of Elements.
The musical 'The Sound of Music,' starring Julie Andrews, premiered.
US President Joe Biden announced that Americans no longer needed to wear masks against COVID-19, following guidance released by the CDC.
Automatic street lights first appeared in New Milford, Connecticut, US.
