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May 31 is the 151st day (152nd in leap years) of the year, with 214 days remaining.
- 1935 –20th Century Fox is founded.
- 1978 –Star Wars Weekly 17 published.
- 1984 –Richard Riddell is born.
- 1986 –Return of the Jedi Weekly 154 published.
- 2006 –Knights of the Old Republic 5 published.
- 2007 –Star Wars Insider 94 published.
- 2010 –Death Star Battles published.
- 2012 –Star Wars: The Clone Wars Comic UK 6.34 published.
- 2017 –Doctor Aphra (2016) 7 published.
- 2018 –Michael Ford dies.
- 2019 –Star Wars: Galaxy's Edge opens inDisneyland.
- 2019 – "Luke vs. the Rancor - Wrath of the Rancor" airs on YouTube.
- 2022 –The Thrawn Trilogy Boxed Set published.
- 2022 –Star Wars: I Am Your Father published.
- 2023 –Doctor Aphra (2020) 32 published.
- 2023 –Sana Starros 4 published.
- 2023 –The High Republic Adventures (2022) 5 published.
- 2023 –Star Wars: The Bad Batch junior novelization published in France.

