What happened August 1973 AD

Libya nationalizes 51 percent of Occidental Petroleum concession and of the Oasis consortium.

In mid-1973, Cruyff was sold to Barcelona for 6 million guilders (approx. US$2 million, c. 1973) in a world record transfer fee.

On 13 August 1973, at the age of five, the young Céline made her first public appearance at her brother Michel's wedding, where she performed Christine Charbonneau's song "Du fil, des Aiguilles et du Coton".

The first feature film to use digital image processing was the 1973 movie Westworld, a science-fiction film written and directed by novelist Michael Crichton, in which humanoid robots live amongst the humans. John Whitney, Jr, and Gary Demos at Information International, Inc. digitally processed motion-picture photography to appear pixelized in order to portray the Gunslinger android's point of view.

On 19 August 1973, he played his last match for Ajax where they defeated FC Amsterdam 6–1, the second match of the 1973–74 season.

President Nixon's Cost of Living Council imposes a two-tier price ceiling on crude petroleum sales: production of "old" oil (that produced at or below 1972 levels from existing wells) to be sold at March 1973 prices plus 35 cents; production of "new" oil (that produced above 1972 levels from existing wells and oil produced from new wells) to be sold at uncontrolled prices.