1915

April-May

 * The Doctor was wounded at Gallipoli. (DW: The Sea Devils)

May

 * 7 - The RMS Lusitania was torpedoed by a German U-boat. (BFA: The Sirens of Time)

August

 * The Seventh Doctor, Ace and Bernice Summerfield arrived in Haiti. (NA: White Darkness)

Other timelines

 * In John Smith's possible future, he married Joan Redfern in this year. (NA: Human Nature)

March

 * 21 - Ian Stuart Black is born.

May

 * 20 - Peter Copley is born.

July

 * 20 - Robin Wentworth is born.

September

 * 13 - Alan Bromly, director of The Time Warrior and Nightmare of Eden, is born.
 * 17 - John Witty, the voice of the Computer in The Seeds of Death, is born in Bristol.
 * 22 - Emrys Jones is born.

December

 * 13 - Mary Morris is born.
 * 19 - Simon Lack is born.
 * 21 - James Cairncross, who played Lemaitre in The Reign of Terror and Beta in The Krotons, is born in Dunfermline, Fife, Scotland.