1285

Millennium:	2nd millennium
Centuries:	12th century – 13th century – 14th century
Decades:	1250s 1260s 1270s – 1280s – 1290s 1300s 1310s
Years:	1282 1283 1284 – 1285 – 1286 1287 1288

1285 by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments
Art and literature
1285 in poetry

Events

January 6 – Archbishop Jakub Świnka orders all priests subject to his bishopry in Poland to deliver sermons in Polish rather than German, thus further unifying the Catholic Church in Poland and fostering a national identity.
April 2 – Pope Honorius IV succeeds Pope Martin IV as the 190th pope.
April 25 – Mamluk sultan Qalawun begins a siege of the Crusader fortress of Margat (in present-day Syria), a major stronghold of the Knights Hospitaller thought to be impregnable; he captures the fortress a month later.
September 4 – Roger of Lauria defeats King Philip III of France in a naval battle off of Barcelona.
The writ Circumspecte Agatis, issued by King Edward I of England, defines the jurisdictions of church and state in England, thereby limiting the church's judicial powers to ecclesiastical cases only.
The Second Statute of Westminster is passed in England, reforming various laws; it includes the famous clause de donis conditionalibus, considered one of the fundamental institutes of medieval law in England.
The English romantic poem The Lay of Havelok the Dane is written (approximate date).
Tran Hung Dao leads Vietnamese forces in victory over an invading Mongol army of the Yuan dynasty.
Mansa Sakura usurps the throne of the Mali Empire

March 9 – Emperor Go-Nijo of Japan (d. 1308)
May 1 – Edmund FitzAlan, 9th Earl of Arundel, English politician (d. 1326)
December 6 – King Ferdinand IV of Castile (d. 1312)
Al-Nasr Muhammad, sultan of Egypt (d. 1341)
Ziauddin Barani, historian and political thinker of the Delhi Sultanate (d. 1357)
Patrick Dunbar, 9th Earl of Dunbar (d. 1369)