21 October

On 21 October 1805, the Battle of Trafalgar was fought. Lord Admiral Horatio Nelson died in victory. At least three incarnations of the Doctor were present at the event. (PROSE: H.M.S. TARDIS; COMIC: Rough Waters, Ghosts of the Seas; AUDIO: Gallery of Ghouls) As a young man, Sir Edward Scrivener's butler Hill served aboard the HMS Temeraire during the battle. (AUDIO: The Ghosts of Gralstead)

In 1829, the Mermaid hit a coral reef in a storm. The ship was wrecked but none of the crew perished. (PROSE: Of the Mermaid and Jupiter)

In 2015, the Eighth Doctor and Lucie Miller visited London. (AUDIO: The Eight Truths)