George IV succeeded his father, George III, as King of the United Kingdom.
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Due to climate change, a deadly heatwave landed in North-East America.
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.
In Rosetta, Egypt, French troops discovered a black stone carved with two ancient Egyptian texts and one Ancient Greek text.
Maurice-François Garin won the first Tour de France.
