Henry IV was crowned King of Germany at Aachen Cathedral.
Source
The Potsdam Conference began between the Soviet Union, UK & US.
Twelve North African Christians, known as the Scillitan Martyrs, were executed for their religious beliefs.
The British Royal family changed their surname to Windsor.
Water Music by George Frideric Handel premiered on the River Thames, London, at the request of King George I.
The Apollo-Soyuz Test Project completed the world's first international space rendezvous.
