1900

In January 1900, Joan Redfern's husband, Oliver, (TV: Human Nature) and Private Tommy Watkins (AUDIO: Tales from the Vault) were killed in the Battle of Spion Kop during the Boer Wars.

On 17 May, the First Doctor was present at the Relief of Mafeking. (TV: The Daleks' Master Plan)

In July, Lord Salisbury was serving as the Prime Minister of the United Kingdom. He was the last Prime Minister who refused to use 10 Downing Street as his official home. He instead allowed his nephew Arthur Balfour to use it. Balfour later became Prime Minister himself. (AUDIO: Upstairs)

In December, the Second Doctor and his companions Jamie McCrimmon and Zoe Heriot met the supernatural detective Thomas Carnacki in Kent. (PROSE: Foreign Devils)

Constance Bassett, the mother of Tommy Brockless, died. (TV: To the Last Man)