19th century

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

Because of this interest, the Doctor, his companions, associates and even enemies travelled to many years within the century, including:

The dates of some events were not, however, specifically known. It was known, for instance, that the following events took place in the :
 * Sebastiene attempted to hunt down the Tenth Doctor. (NSA: The Doctor Trap)
 * Ancestors of Gwen Cooper settled in the Cardiff area, who shared spatial genetic multiplicity with Gwyneth. (DW: The Unquiet Dead, Journey's End)