1957

1957 was the official start of humanity's space age. (PROSE: Inter-Galactic Cat)

May

 * 1 - The Soviet Union secretly launched Earth's first artificial satellite, Sputnik, but it was hijacked by to send a signal to the Tzun. The Soviets wiped the embarrassing failure from their history books. (PROSE: First Frontier)

October

 * The Seventh Doctor, Ace and Bernice Summerfield visited New Mexico, where they stopped and the Tzun from conquering Earth. (PROSE: First Frontier)
 * 15 - A BBC News bulletin reported on the recent launch of Sputnik, Earth's first artificial satellite, by the Soviet Union. (AUDIO: Unregenerate!)

Unknown dates

 * Noel Coward met Iris Wildthyme at the Royal Variety Performance at some point this year. They immediately became friends. (PROSE: Mad Dogs and Englishmen)
 * Douglas Caldwell, a member of Torchwood One, died. (TV: To the Last Man)
 * Edgar Nelson-Stanley discovered the Gorgon talisman in Syria. (TV: Eye of the Gorgon)
 * The Doctor owned a map of Paris from this year. (PROSE: The Death of Art)

January

 * 3 - Actor Annie Lambert was born.
 * 14 - Actor Suzanne Danielle was born.
 * 26 - Executive producer Mal Young was born.

February

 * 16 - Writer Alison Bingeman was born.
 * 21 - Actor Van Epperson was born.

March

 * 8 - Actor Paul Clayton was born.
 * 10 - Actor Andrew Boxer was born.
 * 24 - Actor Christine Kavanagh was born.
 * 29 - Actor Yolande Palfrey was born.

April

 * 6 - Actor Glen Murphy was born.
 * 12 - Actor Andrew Dunn was born.

May

 * 5 - Actor Richard E. Grant was born.
 * 12 - Actor Sneh Gupta was born.
 * 14 - Actor Paul Tomany was born.

June

 * 5 - Actor Steven Pacey was born.
 * 19 - The Army Game debuted on UK television. The series co-stared William Hartnell in what became his best-known role prior to Doctor Who.
 * 23 - Actor Leee John was born.

July

 * 26 - Actor Nana Visitor was born.

August

 * 24 - Actor Stephen Fry was born.

September

 * 15 - Actor Dorota Rae was born.
 * 25 - Actor Ian Reddington was born.

October

 * 5 - Actor Phil Cornwell was born.

December

 * 1 - Actor Deep Roy was born.
 * 6 - Actor Arabella Weir was born.