On 21 August, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1965 - Part two of the TV Comic story Time in Reverse was first published.
- 1965 - Part seven of the TV Century 21 story The Penta Ray Factor was first published.
- 1971 - Part five of The Celluloid Midas was first published in Countdown.
- 1975 - The novelisation of Green Death was first published by Target Books.
- 1976 - Part two of the TV Comic story Mind Snatch was first published.
- 1980 - The novelisations of The Keys of Marinus and of The Nightmare of Eden were first published by Target Books.
- 1986 - The novelisation of Slipback was first published by Target Books.
- 1997 - Ship of Fools was first published by Virgin Books.
- 2013 - DWDVDF 121 was first published by GE Fabbri Ltd.
- 2014 - Doctor Who Magazine 477 was first published by Panini.