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Events

By Place

Asia

* Emperor Kazan succeeds Emperor En'yū on the throne of Japan.
* The Song Dynasty Chinese engineer Qiao Wei innovates the first known use of the double-gated canal pound lock for adjusting different water levels in segments of the Grand Canal of China. This dramatically helps the passage of ships in segments with rougher waters leading slightly downhill. Qiao also has roof hangers built over the segments where double gates are installed, increasing the amount of safety for passing ships.

Europe

* Henry II, Duke of Bavaria abducts the child king Otto III.
* The settlement of Greenland is begun by the Norse.

By Topic

Religion

* Antipope Boniface VII murders Pope John XIV.

Births

* Ch'oe Ch'ung, Korean scholar
* Canute the Great, Emperor of the North

Deaths

* Pope John XIV
* May 5 - Gerberga of Saxony