Automatic street lights first appeared in New Milford, Connecticut, US.
This marked the end for manual street lights.
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The Concorde airplane was tested for the first time in Toulouse, France.
US President Joe Biden announced that Americans no longer needed to wear masks against COVID-19, following guidance released by the CDC.
Chemical elements Moscovium, Tennessine, and Oganesson were added to the Periodic Table of Elements.
The Bank of England printed the first one-pound and two-pound banknotes.
Jupiter's moon was found to have a liquid ocean under a thick crust of ice.
