On this day in conspiracies

On the Everest reconnaissance, Eric Shipton and Michael Ward photograph a line of tracks and one strikingly clear footprint, a little over twelve inches long, in the snow of the Menlung Glacier. Shipton lays an ice axe beside the print for scale. The image becomes the single most famous piece of Yeti evidence.

On the morning of 8 November, Kilgallen, 52, is found dead in her townhouse at 45 East 68th Street. Accounts describe her sitting up, fully dressed and made up, in a third-floor bedroom she rarely used, with a book on or beside her.

In the early hours, Lucan telephones and then visits his mother and later friends, giving an account of finding an intruder attacking his wife. He writes two letters to his brother-in-law, Bill Shand Kydd, describing a 'traumatic night of unbelievable coincidence' and saying he will 'lie doggo for a while.' He leaves a friend's house in Uckfield, Sussex, before dawn. He is never reliably seen again.

US soldiers excavate a pit at the Calivigny military camp where witnesses said the bodies had been taken, burned, and buried. Investigators suspect Bishop's body is among the recovered remains, but a later forensic examination finds them too decomposed and damaged to confirm his identity.

A Dhaka sessions court convicts fifteen former army officers and sentences them to death for the assassination. The verdict is based on ballistic evidence, eyewitness testimony, and confessional statements from participants in the coup.