989

Events

Emperor Basil II uses his contingent of 6,000 Varangians to help him defeat Bardas Phokas (the Younger), who suffers a seizure during the siege of Abydos (threatening to blockade the Dardanelles). Phokas dies, ending the revolt and threat to Constantinople. Upon Phokas' death, the other rebel leader Bardas Skleros (who is captured and blinded) yields to Basil's superior forces.

Summer – Charles, Duke of Lower Lorraine, captures the city of Reims by treachery of its new archbishop, Arnulf (the illegitimate son of the late King Lothair III). King Hugh I (Capet) demands that Pope John XV discipline Arnulf. But John XV, not wishing to defy Empress Theophanu, refuses.Reuter, Timothy (1999). The New Cambridge Medieval History, Volume III, p. 390. {{ISBN|978-0-521-36447-8}}.
Winter – Theophanu arrives with her son, King Otto III in Rome to meet John XV. Crescentius II (the Younger) offers his submission to the Holy Roman Empire, in return for which she confirms his title as patrician of Rome.

Council of Charroux: French bishops under the patronage of William IV, duke of Aquitaine, declare the first Peace of God (or Pax Dei). This agreement grants immunity from violence to noncombatants (peasants and clergy) who can not defend themselves.

October 25 – The Hagia Sophia at Constantinople is struck by a great earthquake, causing the collapse of the western dome arch. Basil II asks the Armenian architect Trdat, the creator of the Cathedral of Ani, to direct the repairs.{{cite journal|author-link=Christina Maranci|last=Maranci|first=Christina|jstor=3592516|title=The Architect Trdat: Building Practices and Cross-Cultural Exchange in Byzantium and Armenia|journal=Journal of the Society of Architectural Historians|volume=62|issue=3|date=September 2003|pages=294–305|doi=10.2307/3592516|doi-access=free}}

Sankore Madrasah, at this stage a mosque, is founded in Timbuktu (modern-day Mali).