1970

In 1970, a part-Time Lord/part-human girl regenerated into an incarnation who was later known as Mels, initally emerging as "a toddler in the middle of New York." (TV: Day of the Moon, TV: A Good Man Goes to War / Let's Kill Hitler)

The Third Doctor, having been exiled by the Time Lords to Earth and forced to regenerate, reunited with Brigadier Alistair Gordon Lethbridge-Stewart and met Liz Shaw before fighting off the Autons and the Nestene Consciousness for the first time. (TV: Spearhead from Space)

Dated events
On 20 July, according to one account, the first human astronauts landed on the Moon, where they encountered the First Doctor, John and Gillian. (COMIC: Moon Landing)

On 20 August, Dorothy Gale McShane, later to be a companion of the Seventh Doctor known as "Ace", was born to Audrey Dudman in England. (TV: Ghost Light)

Mars Probe 7 reached Earth, the radioactive aliens were removed and the Third Doctor prevented General Carrington from starting a war. (TV: The Ambassadors of Death, PROSE: Who Killed Kennedy)

Unknown dates
"Mary" killed Myra Bennett to consume her heart. Human authorities didn't catch her. (TV: Greeks Bearing Gifts)

Agatha Ellis was born in Hove. Her mother died in childbirth which caused her father to suffer a mental illness. (PROSE: Curtain Call)

The Second Doctor and Jamie McCrimmon encountered the Ice Apes in Antarctica. (COMIC: Ice Cap Terror)

Trey Korte was born in Chicago. (PROSE: Instruments of Darkness)

The Second Doctor, John and Gillian fought the Cybermen in London. (COMIC: Cyber-Mole)

Alternative timeline
In an alternative timeline, the Beatles did not break up in 1970. The Eighth Doctor's companion Fitz Kreiner saw them perform at Live Aid in 1985. (PROSE: The Gallifrey Chronicles)

Behind the scenes
According to the UNIT website, on 25 January UNIT finished their involvement in Project: Waxwork.