Arab members of OPEC (the Organization of Petroleum Exporting Countries) cut oil supply to countries supporting Israel, causing soaring petrol prices and widespread shortages.
The Sydney Opera House is opened by Her Majesty Queen Elizabeth II after years of controversy over its design. In hindsight, you’d have to say it was worth it.
On New Year’s Eve, a small band performs its first gig in Sydney. Founders Malcolm and Angus Young selected the group’s name after seeing AC/DC written on a sewing machine.