Major Events
- Feb 20 Japanese Imperial Court orders all temples and shrines to pray for victory in the impending second Mongol invasion
- Jul 27 Sogen Mugaku, founder of Engakuji temple, arrives in Japan from China
Who Died in 1280
- Feb 10 Margaret II, Vlamingen noble, Countess of Flanders (1244–78) and Countess of Hainaut (1244–54 & 1257–80), dies at 77
- May 9 Magnus VI Lagabuter, King of Norway (1263-80), dies at 42
- Aug 22 Nicholas III [Giovanni Gaetano Orsini], Italian Pope (1277-80), dies
- Nov 15 Albertus Magnus the Great, German leader/bishop Regensburg, dies at 87
Kublai Khan