Collins Dictionary announced 'AI' as the most notable word in 2023.
Palau's archipelago became the first country in the world to ban the use of sunscreen containing harmful chemicals that destroy reefs.
Australia, Canada, and Turkey announced they would send armed forces to Afghanistan.
The Maastricht Treaty came into effect, and with it, the European Union was formed.
A leak at a chemical factory in Basel, Switzerland, caused the Rhine to turn red.
Jankenteam's Alex Kidd in Miracle World was released in Japan for the Sega Master System.
The Arecibo Ionospheric Observatory in Arecibo, Puerto Rico, was officially opened.
President Ulysses S. Grant founded the US Weather Bureau.
The United States Weather Bureau made its first comprehensive weather forecast.
The first WHSmith railway bookstore opened at London Euston Railway Station, London, UK.
US President John Adams became the first president to move into the White House.
William Shakespeare had his first known performance of 'The Tempest.'
The first known performance of William Shakespeare's 'Othello' occurred at Whitehall Palace, London.
The All Saints' Day Flood destroyed the Dutch and German coastlines.
Portuguese explorer Ferdinand Magellan became the first European to discover the Strait of Magellan.
Michelangelo's Sistine Chapel ceiling mural was presented to the public.
King John of England taxed all of England's Jews for 66,000 Francs and imprisoned those who couldn't pay.