1851

History of the Doctor Who Universe
The Doctor considers 1851 to be a "bit dull". (DW: The Next Doctor)

February

 * 01 - Mary Shelley dies. The Fourth Doctor and Sarah Jane Smith will meet a Reprise of Mary Shelley in Europa. (MA: Managra)

May to October

 * The Great Exhibition is held in London. The Doctor attempts to take Tegan and Nyssa to this event when the TARDIS lands instead at Heathrow in 1982. (DW: Time-Flight)

August

 * The 30.86 m schooner-yacht America, representing the New York Yacht Club, crosses the Atlantic Ocean in seventeen days on its way to the Isle of Wight, where it wins the British 100 Guinea yacht race on, thereafter known as the America's Cup Race, on 22 August. (DW: Enlightenment)

Late November-Early December

 * Jackson Lake, having recently relocated his family to London, encounters the Cybermen, an event that results in the death of his wife, the abduction of his son by the Cybermen, and the temporary replacement of his memories and personality with that of the Doctor, leading him to believe that he has undergone a regeneration. In the coming weeks Lake investigates the Cybermen, dubs a hot-air balloon the TARDIS, and recruits a companion in Rosita. (DW: The Next Doctor)

December

 * 24 and Christmas Day: The Doctor visits London, where he encounters the Cybermen and Jackson Lake, now fully immersed in his new personality as the Doctor. He subsequently helps Lake restore his original memories and rescue his son. Meanwhile, London is attacked by a giant robot controlled by the Cybermen. After destroying the Cybermen, the Doctor accepts Lake's invitation to enjoy Christmas dinner with him. (DW: The Next Doctor)