History
1283
General
Population: 427 Million*
- Entertainment: Alfonzo X King of Castile and León creates book on chess, dice and backgammon
- Deaths: Saadi the poet, Dafydd Gruffydd tried for treason – dragged, hanged, castrated, disemboweled, burned, quartered
Europe
- England: Edward I conquers Gwynneth - start of Welsh conquest
- German States: The Teutonic Order completes subjection of Prussia
False Emperor Frederick II appears in Germany
- Wales: Erection of Caernarvon Castle in Wales
Edward I defeats and kills Llewellyn Prince of Wales and executes Llewellyn's brother David – Wales remains conquered