1539 - Council of Trent: Paul III sends out letters to his bishops, delaying the Council due to war and the difficulty bishops had traveling to Venice.
1997 - Khmer Rouge leader Pol Pot orders the killing of his defense chief Son Sen and 11 of Sen's family members before Pol Pot flees his northern stronghold.
2002 - The first direct electronic communication experiment between the nervous systems of two humans is carried out by Kevin Warwick in the United Kingdom.