Year 999 (CMXCIX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Europe Silesia is incorporated into territory ruled by Boleslaus I of Poland. The Orsay commune is founded. Asia The Samanid Dynasty ends with the invasion of the Karakhanids from north of the river Sir-Darya. By topic Religion April 2 – Gerbert of Aurillac becomes Pope Silvester II and succeeds Pope Gregory V as the 139th pope. Sigmundur Brestisson introduces Christianity in the Faroe Islands. Christianity is adopted in Iceland. 999 is a band that played punk music in the 1980's. Births Bao Zheng, Chinese magistrate and mayor of Kaifeng (d. 1062) Deaths February 7 – Boleslaus II, Duke of Bohemia February 18 – Pope Gregory V (b. c. ... Read more