1258

Events

 * c. January - One of the largest volcanic eruptions of the epoch occurs, possibly from a tropical location such as,  or .  Observed effects of the eruption include the following anecdotal accounts: dry fog in ; s in ; severe winter in ; a "harsh" spring in Northern ; famine in England, , France, and ; and  in , parts of France, , , , and South-East.


 * - - 's  forces overrun, then the leading center of ic culture and learning and capital of the . They burn the imperial city to the ground, killing as many as 1,000,000 citizens.




 * declares himself . He is the final ruler of an independent, before its conquest by the.
 * King is forced by seven powerful barons to accept the, effectively ending the  in  by requiring the calling of a.
 * The Baoyou ends in the Northern  of.
 * Civil unrest in northern spawns the al form of, penitential songs sung by wandering bands of s.
 * is made Earl of by King.
 * surrenders to.

Births

 * , fourth Ilkhanate ruler of Iran (approximate date; died )
 * , founder of the (died )

Deaths

 * -, last  of Baghdad
 * -, emperor of Nicea ( in exile)
 * , commander who later served the
 * (born )
 * (born c. )
 * , Moroccan spiritual leader (born )
 * ,13th-century who was the first member of the Dominican Order in Britain to become a bishop