Theodore Roosevelt became the first US president to visit another country while in office, visiting Puerto Rico and Panama.
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Piero the Unfortunate was stripped of his title of Lord of Florence, Italy, and exiled.
Paul Rudd was named People Magazine's 2021 Sexiest Man Alive.
The European Space Agency launched the Venus Express, the first European spacecraft to reach Venus.
The Berlin Wall began to fall.
Holy Emperor Louis IV of Bavaria defeated Frederick I of Austria during the Battle of Gammelsdorf.