American astronomer Alexander Wolszczan announced the discovery of the first planets outside our solar system
More than 100,000 Chinese students gathered in Tiananmen Square, Beijing, in a mass protest that spread and grew over the following weeks
One pound coins went into circulation in England and Wales.
UK TV Channel BBC2 launched
Birth of Queen Elizabeth II (was Princess Elizabeth from 1926 until 1952)
World War I: German fighter pilot Manfred von Richthofen (‘The Red Baron’) was shot down and killed over Vaux sur Somme, France.