Henry IV was crowned King of Germany at Aachen Cathedral.
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Twelve North African Christians, known as the Scillitan Martyrs, were executed for their religious beliefs.
The US National Minimum Drinking Age Act was signed into law, raising the age to 21.
Mary Leakey discovered ancient skull remains in Tanzania, Africa.
The British Royal family changed their surname to Windsor.
The English secret service discovered the Babington Plot to murder Queen Elizabeth I.
