1901

January

 * 22 - Queen Victoria died on the Isle of Wight. A comment by the Fourth Doctor led Sarah Jane Smith to believe the Queen was one of his companions, though he was more probably referring to Victoria Waterfield. (DW: Pyramids of Mars) The Doctor was present at Victoria's coronation. (DW: The Curse of Peladon) Victoria's death marked the end of the eponymous Victorian era of Earth's history.
 * Victoria's son Edward VII ascended the throne of Great Britain and Ireland. Some time during his reign (1901-1910), a Rutan invasion of Earth was averted by the Doctor at the Fang Rock lighthouse. (DW: Horror of Fang Rock)

December

 * 12 - While on an expedition to the ruins of Babylon, time sensitive linguist John Lafayette stumbled across a time path to Babylon, circa 570 B.C. (BNA: Walking to Babylon)

unknown dates

 * An English author began writing stories for The Ensign, a magazine for young boys. He would later vanish into the Land of Fiction and become the Master of the Land. (DW: The Mind Robber)
 * The first British submarine was launched. (DW: Enlightenment)
 * Jack Harkness, who had been buried alive under Cardiff since 27 AD, was recovered by Alice Guppy and the Torchwood Cardiff team when they received a signal from a transmitter hidden on Jack by John Hart. To avoid a paradox of meeting his younger self, who at this time was on an assignment, Jack asked to be cryo-preserved until he caught up to his proper timeline in 2009. (TW: Exit Wounds)

January

 * 23 - Bart Allison (Maximus Pettulian in DW: The Romans) was born.

June

 * 18 - Llewellyn Rees (Pandak III in DW: The Deadly Assassin) was born.