1285

1285 in various calendars
Gregorian calendar	1285; MCCLXXXV
Ab urbe condita	2038
Armenian calendar	734; ԹՎ ՉԼԴ
Assyrian calendar	6035
Balinese saka calendar	1206–1207
Bengali calendar	692
Berber calendar	2235
English Regnal year	13 Edw. 1 – 14 Edw. 1
Buddhist calendar	1829
Burmese calendar	647
Byzantine calendar	6793–6794
Chinese calendar	甲申年 (Wood Monkey); 3982 or 3775; — to —; 乙酉年 (Wood Rooster); 3983 or 3776
Coptic calendar	1001–1002
Discordian calendar	2451
Ethiopian calendar	1277–1278
Hebrew calendar	5045–5046
Hindu calendars
- Vikram Samvat	1341–1342
- Shaka Samvat	1206–1207
- Kali Yuga	4385–4386
Holocene calendar	11285
Igbo calendar	285–286
Iranian calendar	663–664
Islamic calendar	683–684
Japanese calendar	Kōan 8; (弘安８年)
Javanese calendar	1195–1196
Julian calendar	1285; MCCLXXXV
Korean calendar	3618
Minguo calendar	627 before ROC; 民前627年
Nanakshahi calendar	−183
Thai solar calendar	1827–1828
Tibetan calendar	阳木猴年; (male Wood-Monkey); 1411 or 1030 or 258; — to —; 阴木鸡年; (female Wood-Rooster); 1412 or 1031 or 259

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

Year 1285 (MCCLXXXV) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.

Events

April 25 – Mamluk sultan Al Mansur Qalawun begins a siege of the Crusader fortress of Margat (in modern-day Syria), a major stronghold of the Knights Hospitaller thought to be impregnable; he captures the fortress a month later.
June 14 – Trần Hưng Đạo leads Vietnamese forces in victory over an invading Mongol fleet of the Yuan dynasty at Chuong Duong.

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 – Chios is captured by Venetian raiders from its Genoese lords. It is later retaken.
Easter – The Second Statute of Westminster is passed in England, reforming various laws; it includes the clause de donis conditionalibus, considered one of the fundamental institutes of medieval law in England.
September 4 – Roger of Lauria defeats King Philip III of France in a naval battle off 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 English romantic poem The Lay of Havelok the Dane is written (approximate date).

First record of an emission of life annuities by the city of Lübeck. It is the first instance of issue of public debt in Germany and it confirms a trend of consolidation of local public debt over north-western Europe (see 1228).^[1]
The county of Champagne is integrated into the kingdom of France, the region loses its haven characteristics for foreign merchants and the fairs of Troyes quickly dwindle into economic insignificance.^[2]

^ Zuijderduijn, Jaco (2009). Medieval Capital Markets. Markets for renten, state formation and private investment in Holland (1300-1550). Leiden/Boston: Brill. ISBN 978-90-04-17565-5.
^ Abu-Lughod, Janet L. (1991). Before European Hegemony: The World System A.D. 1250-1350. Oxford: Oxford University Press. ISBN 0-19-506774-6.

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1285 in poetry
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