Henry IV was crowned King of Germany at Aachen Cathedral.
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Water Music by George Frideric Handel premiered on the River Thames, London, at the request of King George I.
The English secret service discovered the Babington Plot to murder Queen Elizabeth I.
Willis Carrier invented the world's first electronic air conditioner.
Bill Gates became the richest man in the world with a net worth of $12.9 billion.
The Apollo-Soyuz Test Project completed the world's first international space rendezvous.