- NASA announces that it has lost contact with the Mars Climate Orbiter.
- Qantas Flight 1 overruns the runway in Bangkok during a storm. While some passengers only received minor injuries, it is still the worst crash in Qantas's history to date.
- Ivan Goff, Australian screenwriter (Man of a Thousand Faces), dies at 89
About September 23, 1999
Day of the Week: Thursday
How Long Ago? 23 years, 5 months and 28 days
Leap Year: No
Generation: Generation Z
Chinese Zodiac: Rabbit
Star Sign: Libra
- #1 Song: Unpretty - TLC
- #1 Song: Blue (Da Ba Dee) - Eiffel 65