The Montreal Protocol on Substances That Deplete the Ozone Layer comes into force.
Tag: 1989
17 November 1989
The Velvet Revolution begins in Czechoslovakia with a student demonstration in Prague being quelled by riot police. This eventually sparks an uprising aimed at overthrowing…
15 October 1989
Wayne Gretzky becomes the all-time leading points scorer in the National Hockey League
2 August 1989
A massacre is carried out in Valvettitura by an c in Sri Lanka that killed 64 ethnic Tamil civilians.