Parallel world (Turn Left)
Donna's World is a rewritten version of the official timeline created when Donna Noble turned right instead of left while deciding which of two different job interviews to attend. It is not actually a parallel world since the walls between realities were sealed in Doomsday. This was made explicit by the production team.
- This name is conjectural and is not is actually used by any of the characters.
Origin
While on Shan Shen, Donna Noble was unknowingly fitted with a time beetle, part of the Trickster's Brigade. A fortune teller selected a point in her life where making seemingly random choice had enormous ramifications.
In June 2007 Donna had to make a choice between two jobs. The moment she chose between the jobs was at a junction. Her agency had offered her a contract with H.C. Clements, which while temporary, was posh and in the centre of London, which Donna enjoyed. Her mother, Sylvia Noble, had managed to get her another job opportunity to become the personal secretary of Jival Chowdry, owner of a photocopying business. Although this would be a permanent job, Donna found it less interesting.
While driving and in discussing the dilemma, Sylvia pressured her into "turning right" to stop by Jival Chowdry for a chat. While in the regular timeline Donna ignored her mother and turned left, in this timeline she turned right, resulting in her taking the PA job.
Alternate Timeline
December 2007: The Doctor tracks down the Empress of the Racnoss to the Torchwood base underneath the Thames Barrier and blows it up, which floods the whole thing. Although the Empress of the Racnoss and her offspring drown, the Doctor is unable to escape and dies too quickly to regenerate. The TARDIS is salvaged from under the Thames and sent to a UNIT base in Leeds.
Negation
UNIT and Rose Tyler sent Donna back to the time where the worlds split. To make her past self turn left, she headed from her landing location to the road where her past self was in her car. Running out of time, Donna jumped out in front of a lorry. Although she died, a traffic jam quickly blocked the route right from the past Donna, so the past Donna chose to turn left. (DW: Turn Left) Presumably, Donna's World was negated, however the ongoing existence of Pete's World suggests it might continue to exist in a parallel universe. Rose is later seen communicating with an entity called "Control" as she teleports around the main, "Donna Turned Left" Earth, and it's not known on which world "Control" exists. (DW: The Stolen Earth)
