The Day of Mourning is an event where the nation of Cyre was destroyed in a magical holocaust of unknown origins on the 20th of Olarune, 994 YK. This event marked the beginning of the end of the Last War. Over a million Cyrans perished, including Cyre's Queen, Dannel ir'Wyrnarn along with military personnel from Breland, Thrane, and Karrnath within the nation's borders.