1149

Political Events

Scotland's David I bestows a knighthood on the 16-year-old Henry Plantagenet, son of Geoffrey of Anjou; young Henry acknowledges the Scottish king's right to Northumberland.

Raymond of Poitiers, prince of Antioch, is killed in June near Apamea by Nur ad-Din, ruler of Aleppo.

Venetian mercenaries regain Corfu for the Byzantines.

The Ghaznavid ruler Bahram Shah at Ghur in west-central Afghanistan poisons the Ghurid leader Qutb-ud-Din, who has taken refuge in the city of Ghazna following a family dispute. The Ghurid chief Ala-ud-Din sacks and burns the city in revenge, terminating the Ghaznavid clan's rule, but Ala-ud-Din will not be able to retain control of Ghazna (see 1173).

Medicine

Theisir (al-Taysir) by the Arab physician Avenzoar (Abu Mervan ibn Zuh) describes otitis media, paralysis of the pharnyx, and pericarditis in a work based on personal experience, independent observation, and sound judgment. Opposing purgatives, Avenzoar strongly advocates venesection (phlebotomy).

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