990 - Events.
January 1 - Kievan Rus' adopts the Julian calendar.
Construction of the Al-Hakim Mosque begins in Cairo.
The Pax Ecclesiae, an attempt by the church in southern France to forbid acts of war againt non-combatants and the clergy
990 - Births.
Conrad II, Holy Roman Emperor (approximate)
Edmund II of England, (approximate)
Mieszko II of Poland, king of Poland from 1025 to 1031, duke from 1032 to 1034.
Yor ...
