The Montreal Protocol is signed to protect the ozone layer from depletion
15 September 2000
The Summer Olympics, officially known as the games of the XXVII Olympiad, are opened in Sydney, Australia.
13 September 1962
An appeals court orders the University of Mississippi to admit James Meredith, the first African-American student admitted to the segregated university.
12 September 1983
The USSR vetoes a United Nations Security Council Resolution deploring the Soviet destruction of Korean Air Lines Flight 007.
10 September 1939
World War II: The Canadian declaration of war on Germany receives royal assent.
6 September 1962
Archaeologist Peter Marsden discovers the first of the Blackfriars Ships dating back to the second century AD in the Blackfriars area of the banks of…
5 September 1980
The Gotthard Road Tunnel opens in Switzerland as the world’s longest highway tunnel at 10.14 miles (16.32 km) stretching from Göschenen to Airolo.