15 April

In the early hours of 15 April 1912, the RMS Titanic sank; over fifteen hundred people died. The final death count was reduced when the Ninth Doctor managed to keep one family from boarding the doomed vessel. (TV: Rose) The Fourth Doctor assured Borusa that he "had nothing to do with it." (TV: The Invasion of Time) The sinking was a major event in 20th century Earth history, and nearly a century later, Max Capricorn built a space-faring replica which nearly met a similarly tragic end. (TV: Voyage of the Damned)

The Master, who was trapped on Earth in the early 20th century, boarded the Titanic for its maiden voyage in order to avoid the upcoming First World War by migrating to the United States of America. He was unaware of its eventual fate. However, he managed to escape the sinking in a lifeboat. (AUDIO: Mastermind)

However, 15 April was not only important for that fateful event. The day was in fact the birthday of two of the Doctor's companions. On the same day as the sinking, Charlotte Pollard, a companion of the Eighth and Sixth Doctors, was born to Lord Richard and Lady Louise Pollard. (AUDIO: Neverland) In 1980, Samantha Jones, another of the Eighth Doctor's companions, was born, probably in London. (PROSE: Unnatural History)

According to the documentary The Last Days of Hitler?, Eva Braun arrived at the Berlin Bunker on this day in 1945. When she refused to leave, Adolf Hitler was touched. (PROSE: The Shadow in the Glass)

In 2040, Imogen Quaye learned that her aunt had sold her to the Lashley Institute for 15 million euros. (PROSE: Artificial Intelligence)