• The Mount Samalas volcano erupts on Lombok Island, Indonesia, one of the largest volcanic eruptions in the past 10,000 years, created severe climatic changes across the globe leading to severe famines and death. Leading to one of the biggest geo-political changes across the globe over the next few centuries.^[1][2]
• Robert de Sorbon founds the Collège de Sorbonne at Paris, France, giving a formal college (and still-common name) to the already existing University of Paris in France.
• Matthew Paris, English historian, personally interviews King Henry III of England for an entire week, while compiling his major work of English history, Chronica Majora.
• King Henry III of England orders the production of a 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 is about 20% higher than the nominal face value, leading to poor circulation, as coins are melted down by individuals for their gold content.
• The second Genoese War breaks out between Genoa and Venice in Outremer, known as the War of Saint Sabas.
• The city of Kraków is rebuilt by Boleslaus V of Poland after being nearly destroyed in the Tatar invasions in 1241 and is granted Magdeburg rights on June 5.
• Władysław Opolski founds the Franciscan monastery in the city of Wodzisław Śląski. Before this date Wodzisław was granted Magdeburg rights (1246-1257).
• The Japanese Kōgen era ends, and the Shōka era begins.
• The Mongols take Dai Viet (northern Vietnam).
• Lambsar Castle in Persia is destroyed by the Mongols.
• Aberdeen Grammar School is founded in Scotland.
• The Epirote–Nicaean conflict begins.
• Karelians make a campaign to Sweden. The campaign leads Swedish king Valdemar to request Pope Alexander IV to declare a crusade against Karelians, which leads to the third Swedish crusade to Finland.

Births

• October 14 – Przemysł II, king of Poland (d. 1296)
• Beatrice of Burgundy, Lady of Bourbon (d. 1310)

Deaths

• April 28 – Shajar al-Durr, sovereign sultana of Egypt
• June 4 – Duke Przemysł I of Greater Poland (b. 1220/1)
• August 15 – Hyacinth of Poland, friar, "Apostle of the North", canonized (b. c.1185)
• December 24 – John I, Count of Hainaut (b. 1218)

References