1692

1692 was notable for being the year in which the Salem witch trials were held in the British colony of Massachusetts. The event was of such keen interest to the First Doctor he was there on four separate occasions — so often that he risked creating a temporal paradox.
On several of these occasions between 11 January and 29 July, he was there with his granddaughter Susan Foreman, Ian Chesterton and Barbara Wright. (PROSE: The Witch Hunters)