Facebook's parent company, Meta, laid off 11,000 employees amid a weak advertising market.
Paul Rudd was named People Magazine's 2021 Sexiest Man Alive.
In San Diego, California, SeaWorld announced that it would phase out its orca shows following protests.
The European Space Agency launched the Venus Express, the first European spacecraft to reach Venus.
Italian opera singer Andrea Bocelli released his sixth album, 'Sacred Arias,' which sold over 5 million copies, making it the highest-selling classical album ever by a solo singer.
The Berlin Wall began to fall.
NASA launched the Apollo 4 test spacecraft to test the Saturn V rocket for the first time.
King Edward VII was gifted with The Cullinan Diamond (the world's largest diamond) on his 60th birthday.
Theodore Roosevelt became the first US president to visit another country while in office, visiting Puerto Rico and Panama.
The first sustained flight of over five minutes was achieved and traveled three miles in the process.
Mary Jane Kelly was found dead on her bed in London. She is thought to have been the fifth and final victim of the infamous serial killer, Jack the Ripper.
George Bruce received the first US design patents for typefaces and bordering.
The Mayflower, filled with Puritan Pilgrims, spotted land at Cape Cod, Massachusetts.
The Stockholm Bloodbath came to an end when the final executions took place.
Piero the Unfortunate was stripped of his title of Lord of Florence, Italy, and exiled.
Holy Emperor Louis IV of Bavaria defeated Frederick I of Austria during the Battle of Gammelsdorf.
