1881

On 26 October 1881, the Gunfight at the O.K. Corral occurred in Tombstone, Arizona Territory in the USA. The fight, which posed the Earp brothers and Doc Holliday against a group of outlaws, became one of the most iconic events in the history of the Wild West. The First Doctor, Steven Taylor and Dodo Chaplet arrived in Tombstone in the hours before the fight as the Doctor required treatment for his toothache. Holliday did the dentistry. The Doctor, Steven and Dodo subsequently witnessed the gunfight. (TV: The Gunfighters)

According to the Doctor, the last time he took a haircut was in this year. (AUDIO: ''The Magic Mousetrap)

Behind the scenes
According to The Brilliant Book 2012, a book that contains non-narrative based information, in Egypt, Madame Vastra helped a group of archaeologists excavate a tomb, with the intention of eating any mummies found inside. Meanwhile, in London, the Eleventh Doctor and Jenny defeated a Kraal plot to replace Prince Bertie with an android duplicate.