1288

Events

 * - succeeds  as the 191st.
 * - defeats the duchy of  in the  &mdash; one of the largest battles in Europe of the Middle Ages &mdash; thus winning possession of the .  The battle also liberates the city of  from rule by the ; it had previously been one of the major ecclesiastical principalities of the.
 * - The of  buys 1/8 of the  copper mine in,.
 * - proclaims a crusade against King, who had lost credibility by favoring his semi-pagan   subjects and in general refusing to conform to the social standards of western Europe.
 * The creates a law allowing women to propose  to men during s; men who refuse such proposals are required to pay a fine to the spurned bride-to-be.
 * The oldest surviving in the clocks atop the dome of  in  dates to 1288.
 * Work is begun on the construction of in.
 * ese general sinks the entire fleet of an invading   army by placing steel-tipped bamboo stakes in the  River, near.
 * The  ends, and the  era begins.
 * : Prince Subaru conquers the provinces of Gunma and Tochigi.
 * The oldest known  in the world is dated to this year, a  gun found in  that was once used to suppress the rebellion of the   Prince Nayan in 1287-1288.

Births

 * - of Japan (died )
 * - of Japan (died )
 * , Jewish philosopher, mathematician, and astronomer (died )
 * (died )

Deaths

 * (born )
 * (born )
 * , Arabic anatomist, discoverer of the circulation of the blood (born )
 * (approximate date; born )
 * , Armenian miniaturist (approximate date; born c. )
 * , Polish prince, Duke of, , , (born )