1914

April

 * Bernice Summerfield watched over the Doctor in the town of Farringham. The Aubertides attacked, searching for the Doctor. (NA: Human Nature)

June

 * French archaeologists discovered a Krivani interstellar drive. With the help of a German spy, the Doctor and Ace retrieved it from British agents. (ST: Ante Bellum)
 * 28 - The assassination of Archduke Franz Ferdinand of Austria-Hungary triggered a series of events that rapidly escalated into Earth's first global conflict; World War I. Unknown to the general populace, however, the start of the war was in fact influenced by the Nemesis (DW: Silver Nemesis). Active warfare would continue until November 1918, with a formal peace treaty ending the war being signed on June 28, 1919, the fifth anniversary of the assassination.

Unknown dates

 * Part of "The Amateur" takes place.
 * Charlie Chaplin began his film career in Hollywood; nearly a century later, Donna Noble expressed a desire to visit him with the Doctor. (DW: Journey's End)
 * The Tenth Doctor visited the battlefields of the First World War in Belgium twice, once with Rose Tyler and once with Daniel Francis Thompson. (DWAM: Warfreekz!, Deep and Dreamless Sleep)

March

 * 8 - George Tovey was born.

April

 * 28 - Robert Lankesheer, who played the Chamberlain in The Crusade, was born in Wales.

June

 * 4 - Edward Evans was born.
 * 26 - John Bailey, who played the Commander in The Sensorites, Edward Waterfield in The Evil of the Daleks, and Sezom in The Horns of Nimon, was born at New Cross, London.

October

 * 30 - Anna Wing was born.

November

 * 23 - Roger Avon, who played Saphadin in The Crusade and Daxtar in The Daleks' Master Plan, as well as Wells in Daleks' Invasion Earth 2150 A.D., was born in Jarrow, England.

December

 * 26 - Dudley Jones, who played John Dyson in The Tenth Planet, was born in Watford, England.