1287

Europe

 * - The treaty of San Agayz is signed. King conquers the island of  from the.
 * - A fringing barrier between the and a shallow lake in  collapses during, causing the fifth largest flood in recorded history which creates the  inlet and kills over 50,000 people; it also gives sea access to , allowing its development as an important port city.
 * The city of  on  is destroyed by catastrophic flooding during a severe storm; a new town of the same name is later constructed some two miles away on higher ground.
 * The at the  in,  &mdash; a masterwork of the ing trade containing nearly a ton of  &mdash; is begun; it will not be completed for nearly 200 years.
 * King arrests the heads of ish households, and demands their communities pay hefty ransoms for their release.
 * Construction on the is begun; it will not be completed until.
 * Third Mongol attack against, led by   and . , ,  and  was ravaged by the invaders, who were defeated in.
 * The first appearance of

Asia

 * sultan captures the port city of  in present-day.
 * dispatches to the leaders of  to negotiate an alliance against  states, specifically the  sultanate of.
 * Kings of the  kingdom and  of the  agree to a peace pact in their region of southeast  (present-day ).
 * The  kingdom at  falls to the invading  in the.

Births

 * -, English writer and bishop (died )
 * -, de facto ruler of England (died )

Deaths

 * -, German poet
 * , a Welsh prince, in his prison at Bristol Castle.
 * , Chinese historian (born )
 * , a Welsh prince, in his prison at Bristol Castle.
 * , Chinese historian (born )