1088

Europe

 * — succeeds  as the 159th.
 * Work begins on the third and largest church at.
 * against lead by.
 * Oldest extant university founded,.

China

 * The  is published in this year by the Chinese scientist and statesman . His book represents the earliest known writing about the ,  , experimentation with  only decades after , and included many different fields of study in  and  form, including , , , , , , , , , , , , etc. Some of Shen's most advanced theories included  and gradual , while he improved  by fixing the position of the  and correcting the  error by plotting its al course every night for a continuum of five years.
 * The Chinese polymath statesman and scientist has the successful pilot model for his   in,  constructed. It features an  mechanism and the world's oldest known endless power-transmitting  to operate the , opening doors, and mechanical-driven s that would rotate in shifts to announce the time on s.

North Africa

 * succeeds as ruler of the  dynasty.

Deaths

 * —, French theologian
 * —, Norman ruler of most of North Wales
 * , Persian theologian
 * , Norman aristocrat