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On 5月31日, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1965 - Part five of the TV Comic story The Gyros Injustice was first published.
- 1969 - Episode seven of The War Games was first broadcast on BBC1.
- 1969 - Part one of the TV Comic story Operation Wurlitzer was first published.
- 1975 - Part two of the TV Comic story The Wreckers was first published.
- 2001 - DWM 305 was first released by Panini Comics
- 2005 - The graphic novel The Tides of Time was first published by Panini Books.
- 2006 - DWA 5 was first released by BBC Magazines.
- 2007 - DWM 383 was first released by Panini Comics.
- 2008 - Silence in the Library was first broadcast on BBC One. Later, Shadow Play aired on BBC Three.
- 2010 - The Time Vampire was first released by Big Finish.
- 2012 - DWA 271 was first released by Immediate Media Company London Limited.
- 2012 - DWM 448 was first released by Panini Comics, containing a code to download the Big Finish audio The Revenants.
- 2013 - JN-T: The Life and Scandalous Times of John Nathan-Turner was first published by Miwk Publishing.
- 2016 - This Sporting Life was first released by Big Finish Productions.
- 2017 - Part one of Secret Agent Man was first published in 9DO 13.
- 2017 - TCH 29 was first released by Hachette Partworks.
- 2018 - DWM 526 was first released by Panini Comics.
- 2018 - Face the Raven was first released by Obverse Books.
- 2018 - DWFC 125 was first released by Eaglemoss Collections.
- 2021 - The Collection Blu-ray box sets Season 12 and Season 19 were re-released as standard editions.