George IV succeeded his father, George III, as King of the United Kingdom.
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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.
The Great Fire of Rome started when the merchant shops around the Circus Maximus caught fire.
In Rosetta, Egypt, French troops discovered a black stone carved with two ancient Egyptian texts and one Ancient Greek text.
Five women were hanged for witchcraft as part of the Salem Witch Trials in Massachusetts, US.
