19th century

The 19th century was very important to the Doctor. His eighth incarnation once called 19th century England his favourite time and place, (PROSE: The Banquo Legacy) though his initial incarnation clearly preferred 18th century France. (TV: The Reign of Terror)

The dates of some events were not specified. The following events took place in an unknown year of the :
 * Sebastiene attempted to hunt down the Tenth Doctor. (PROSE: The Doctor Trap)
 * Ancestors of Gwen Cooper, who shared spatial genetic multiplicity with Gwyneth, settled in the Cardiff area. (TV: The Unquiet Dead, Journey's End)

It was also among the centuries endured by "Lady Me", formerly known as Ashildr, an 9th century Viking girl who was rendered effectively immortal when she was brought back to life by the Twelfth Doctor through a self-repairing Mire medical kit. (TV: The Woman Who Lived)