March 21 is the 80th day of the year (81st in leap years). There are 285 days remaining.
- 1931 – Al Williamson is born.
- 1953 – Taborah Johnson is born.
- 1958 – Gary Oldman is born.
- 1962 – Mark Waid is born.
- 1968 – Greg Ellis is born.
- 1976 – Rachael MacFarlane is born.
- 1979 – Star Wars Weekly 56 published.
- 1983 – The Empire Strikes Back: "Way of the Jedi" aired on National Public Radio.
- 1984 – Return of the Jedi Weekly 40 published.
- 1988 – The Lucasfilm Fan Club Magazine 3 is published in the Spring.
- 1989 – The Lucasfilm Fan Club Magazine 7 is published in the Spring.
- 1990 – The Lucasfilm Fan Club Magazine 11 is published in the Spring.
- 1992 – The Lucasfilm Fan Club Magazine 16 is published in the Spring.
- 1994 – The Lucasfilm Fan Club Magazine 22 is published in the Spring.
- 1995 – Dark Empire II 4 published.
- 1995 – Star Wars Insider 25 is published in the Spring.
- 1996 – Star Wars Insider 29 is published in the Spring.
- 1997 – Star Wars Insider 33 is published in the Spring.
- 2001 – Qui-Gon and Obi-Wan: Last Stand on Ord Mantell 3 published.
- 2002 – HoloNet News Vol. 531 48 published.
- 2002 – Star Wars: Jedi Knight II: Jedi Outcast: Official Perfect Guide published.
- 2005 – "Clone Wars Chapter 21" airs on Cartoon Network.
- 2012 – Dawn of the Jedi: Force Storm 2 published.
- 2012 – Star Wars Omnibus: The Other Sons of Tatooine published.
- 2017 – Star Wars Legends Epic Collection: The Old Republic Vol. 2 published.
- 2018 – Star Wars Battlefront II progression system update released.
- 2018 – Star Wars (2015) 45 published.
- 2018 – Poe Dameron 25 published.
- 2018 – Reflections released.
- 2023 – Star Wars: The High Republic: Chronicles of the Jedi published in the United States.
