1257

Years: 1254 1255 1256 - 1257 - 1258 1259 1260

Decades: 1220s 1230s 1240s - 1250s - 1260s 1270s 1280s

Centuries: 12th century - 13th century - 14th century

Events

*Robert de Sorbon founds the Collège de Sorbonne at Paris, giving a formal college (and still-common name) to the already existing University of Paris in France.
* Matthew Paris, English historian, personally intreviews King Henry III of England for a week straight while compiling his major work of English history, Chronica Majora.
*King Henry III of England orders the production of an twenty pence English coin of pure gold, the first high-denomination coin minted in England and the first to use gold. Unfortunately for King Henry, the bullion value of the coins was about 20% higher than the nominal face value, leading to poor circulation as coins were melted down by individuals for their gold content.
*The second Genoan War brokes out between Genoa and Venice.
*The city of Kraków is rebuilt by Boleslaus V of Poland after being nearly destroyed in the Tatar invasions in 1241.
*The Japanese Kōgen era ends, and the Shōka era begins.

Births

* October 14 - King Przemysł II of Poland (d. 1296)
* Beatrice of Burgundy (died 1310)
*King Sancho IV of Castile and León (died 1295)

Deaths

* June 4 - Duke Przemysł I of Greater Poland
* August 15 - Saint Hyacinth
* December 24 - John I, Count of Hainaut (born 1218)