George IV succeeded his father, George III, as King of the United Kingdom.
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In Rosetta, Egypt, French troops discovered a black stone carved with two ancient Egyptian texts and one Ancient Greek text.
The Seneca Falls Convention became the first-ever US women's rights convention.
Brunel's SS Great Britain ship was launched after taking four years to build.
NASA's Apollo 11 orbited the moon.
Adolf Hitler offered peace to Great Britain if they would surrender and allow Germany to dominate the country.
