1926

Dates Unknown

 * The author of boys' stories for the Ensign magazine vanishes from his home in England, transported to the Land of Fiction, where he becomes the Master of the Land. (DW: The Mind Robber)
 * Marriage of Ann Talbot and Lord Charles Cranleigh, whom the Doctor met during Black Orchid. The Doctor attends the reception, at Cranleigh Hall in Oxfordshire. (MA: The Sands of Time)

June

 * The novel The Murder of Roger Ackroyd, by Agatha Christie, is published. The plot of this book would later form an unconscious template for the actions of a vespiform who encountered Christie and the Doctor later in the year. (DW: The Unicorn and the Wasp)
 * 2 - The cargo ship SS Bernice sets sail from Bombay. (DW:Carnival of Monsters)
 * 4 - The crew of the SS Bernice vanishes from the Indian Ocean, becoming an exhibit in Vorg's Mini-Scope, however due to the intervention of the Doctor, the crew are eventually returned to their original time with no memory of having left. (DW:Carnival of Monsters)
 * Negated: The disappearance of the crew of the SS Bernice becomes a minor mystery along the lines of the Marie Celeste in succeeding years, however the Doctor changes history in a minor way by returning the crew to their proper place in time and space, negating the vessels notoriety. (DW: Carnival of Monsters)

December

 * 8 - The Doctor and Donna Noble meet Agatha Christie; she goes missing for the next ten days. (DW: The Unicorn and the Wasp, known history)
 * 18 - Agatha Christie is found at a hotel in Harrogate. (DW: The Unicorn and the Wasp, known history)

December

 * 14 - Alan Rowe, who played numerous memorable guest roles on Doctor Who, is born in Palmerston North, New Zealand.