927

By place

Europe

• May 27 - Simeon I, emperor of the Bulgarian Empire, dies of heart failure in his palace at Preslav after a 34-year reign. He is survived by four sons and succeeded by his second son Peter I, who signs a peace treaty with the Byzantine Empire. The peace is confirmed by Peter's marrying Maria Lekapene. The treaty restores the borders to those established by several treaties.
• July 12 - King Æthelstan of Wessex claims his kingdom and receives the submission of High-Reeve Ealdred I of Bamburgh and probably also of Owain ap Dyfnwal, King of Strathclyde, at Eamont Bridge. He unifies the various small kingdoms of the Anglo-Saxon Heptarchy, creating the Kingdom of England, and also secures a pledge from King Constantine II of Scotland, that he will not ally with the Viking kings. This summer also Kings Hywel Dda of Deheubarth and Owain of Glywysing and Gwent submit to the overlordship of Æthelstan at Hereford. The borders between England and Wales are set at the River Wye.
• Summer - The Hungarians fight in Rome, helping Margrave Peter against Pope John X. They then go to southern Italy, and conquer the cities of Taranto and Oria.
• August 15 - Led by the Slavic Sabir, the Fatimids from Sicily, capture and destroy Taranto. They enslave much of the population.

  Asia

• Hubaekje, one of the Later Three Kingdoms of Korea, sacks the Silla capital at Gyeongju. King Gyeongae commits suicide and Gyeongsun is placed on the throne by the Hubaekje king Gyeon Hwon.

  By topic

Religion

• The Bulgarian Orthodox Church is recognised as autocephalous, by the Patriarchate of Constantinople.
• September 14 - Cele Dabhaill mac Scannal, Irish preacher and abbot, dies on his pilgrimage at Rome.