1950s

The Doctor described this period as the height of American suspicion and xenophobia as a result of the Cold War. (DWM: The Good Soldier)

In the latter part of the decade, the British government create Department C19. (MA: The Scales of Injustice)

Minor events

 * Alistair Gordon Lethbridge-Stewart joined the Scots Guards and was stationed for a time at Aldgate. (DW: The Web of Fear, The Green Death)

Behind the scenes

 * The first airing of the Quatermass serials, which would have a tremendous influence on Doctor Who.