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Battle of Danevirke: Emperor Otto II defeats the rebel forces of King Harald I, who has invaded Nordalbingia (modern-day Holstein), to shake off imperial overlordship. Otto's armies swiftly subdue the Danes, consolidating the frontier between Scandinavia and Northern Germany. Meanwhile, Henry II begins a rebellion against his cousin Otto. He forges alliances with Bavarian and Saxon nobles.

King Edgar I gives English help to Prince Hywel in ousting his uncle, King Iago of Gwynedd from his kingdom.
A great earthquake occurs in England.

5 August Caliph al-Muti, ill and incapacitated, is deposed and succeeded by his son al-Ta'i, dying shortly after.

The Qarmatians are defeated north of Cairo by Fatimid forces under General Jawhar al-Siqilli. He consolidates Fatimid rule and sends a legation to the Christian land of Nubia to secure the southern border of Egypt. Arab traders introduce Islam to the population, which gradually supplants Christianity.
An offensive, by the Spain-based Caliphate of Córdoba brings the Maghrebi Idrisid Dynasty to an end. Caliph Al-Hakam II maintains the supremacy of the caliphate over the kingdoms of Navarra, Castile and León.

The Liao Dynasty exchanges ambassadors with the Song Dynasty on New Years Day (Spring Festival).
The city of Fuzhou, located in Fujian province, builds new city wallss.

Summer Pope Benedict VI is imprisoned in the Castel Sant'Angelo at Rome, where he is strangled to death through the influence of the powerful Crescentii family. Crescentius I (the Elder), Italian politician and aristocrat, engineers an election and replaces Benedict with his own candidate Franco, who ascends under the title anti-Pope Boniface VII.
Fall Boniface VII is expelled by order of Otto II and flees to Constantinople, taking the Church treasury of the Vatican Basilica along with him. He is succeeded by Benedict VII as the 135th pope of the Catholic Church.
An abbey is founded at the site of Mönchengladbach (Germany).

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