July 23rd
- 1814 – George W. M. Reynolds was born.
- 1947 – The Undead first aired on the radio.
- 1968 – Dark Shadows, Episode 542 first aired on television.
- 1969 – Dark Shadows, Episode 802 first aired on television.
- 1970 – Charisma Carpenter was born.
- 1970 – Dark Shadows, Episode 1064 first aired on television.
- 1999 – The Haunting went to theaters.
- 2005 – Jane Thayer died, age 100.
- 2012 – Margaret Mahy died, age 76.