The Duchy of Courland was formed in 1561 as the result of Livonian Order disintegration and the fact that a part of Livonian knighthood was now subdued to King Sigismund II August.
The largest in the history of the nuclear industry nuclear reactor accident happened on April 26, 1986, at 1:24 am, Moscow Standard Time, on the territory of the USSR at the Chernobyl Nuclear Power Plant.