1851

The Tenth Doctor considered 1851 a "bit dull". (DW: The Next Doctor)

February

 * 1 - Mary Shelley, a former companion of the Eighth Doctor, died. The Fourth Doctor and Sarah Jane Smith met a reprise of Mary Shelley in Europa. (MA: Managra)

May to October

 * The Great Exhibition of the Works of Industry of All Nations was held in London. It was based in a purpose-built venue called the Crystal Palace. The Fifth Doctor wanted to take Nyssa and Tegan Jovanka to the Exhibition as "a treat" in the wake of Adric's death, but instead ended up on the tarmac of Heathrow Airport in 1982. (DW: Time-Flight) The Eighth Doctor took his companions Charley Pollard and C'rizz to the Great Exhibition, shortly after their departure from the Divergent Universe. While there, Charley met and befriended the elderly Duke of Wellington. (BFA: Other Lives)
 * On 12 September, the Fifth Doctor arrived in London and stopped the Klathi from destroying the city. (DWM: Claws of the Klathi)

August

 * The 30.86 m schooner-yacht America, representing the New York Yacht Club, crossed the Atlantic Ocean in seventeen days on its way to the Isle of Wight, where it won the British Hundred Guinea yacht race, thereafter known as the America's Cup Race, on 22nd August. (DW: Enlightenment)

Late November-Early December

 * Jackson Lake, having recently relocated his family to London, encountered the Cybermen. They killed his wife and abducted his son. His memories and personality were replaced by those of the Doctor, leading him to believe that he had undergone a regeneration. In the coming weeks Lake investigated the Cybermen, dubbed a hot-air balloon the TARDIS, and recruited a companion, Rosita. (DW: The Next Doctor)

December

 * 24 and 25th - The Tenth Doctor visited London, where he encountered the Cybermen and Jackson Lake, now fully immersed in his new personality as the Doctor. (DW: The Next Doctor)

Unknown Dates

 * Thomas Brewster's mother died, having committed suicide by throwing herself into the River Thames. Her funeral would be the first memory of her son, who was then only four years old. (BFA: The Haunting of Thomas Brewster)
 * Warren Gadd was born. (JAL: Beautiful Things)