1271

1271 (MCCLXXI) was a common year starting on Thursday of the Julian calendar, the 1271st year of the Common Era (CE) and Anno Domini (AD) designations, the 271st year of the 2nd millennium, the 71st year of the 13th century, and the 2nd year of the 1270s decade. As of the start of 1271, the Gregorian calendar was 7 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium:	2nd millennium
Centuries:	12th century – 13th century – 14th century
Decades:	1240s  1250s  1260s  – 1270s –  1280s  1290s  1300s
Years:	1268 1269 1270 – 1271 – 1272 1273 1274

1271 in other calendars

Gregorian calendar	1271 MCCLXXI
Ab urbe condita	2024
Armenian calendar	720 ԹՎ ՉԻ
Assyrian calendar	6021
Balinese saka calendar	1192–1193
Bengali calendar	678
Berber calendar	2221
English Regnal year	55 Hen. 3 – 56 Hen. 3
Buddhist calendar	1815
Burmese calendar	633
Byzantine calendar	6779–6780
Chinese calendar	庚午年 (Metal Horse) 3967 or 3907     — to — 辛未年 (Metal Goat) 3968 or 3908
Coptic calendar	987–988
Discordian calendar	2437
Ethiopian calendar	1263–1264
Hebrew calendar	5031–5032
Hindu calendars
- Vikram Samvat	1327–1328
- Shaka Samvat	1192–1193
- Kali Yuga	4371–4372
Holocene calendar	11271
Igbo calendar	271–272
Iranian calendar	649–650
Islamic calendar	669–670
Japanese calendar	Bun'ei 8 (文永８年)
Javanese calendar	1181–1182
Julian calendar	1271 MCCLXXI
Korean calendar	3604
Minguo calendar	641 before ROC 民前641年
Nanakshahi calendar	−197
Thai solar calendar	1813–1814
Tibetan calendar	阳金马年 (male Iron-Horse) 1397 or 1016 or 244     — to — 阴金羊年 (female Iron-Goat) 1398 or 1017 or 245

Events

Europe

• July 2 – Kings Otakar II of Bohemia and Stephen V of Hungary sign the first Peace of Pressburg, settling territorial claims following the failed invasion of Hungary by Otakar II.
• September 1 – Pope Gregory X succeeds Pope Clement IV as the 184th popeas the compromise candidate between French and Italian cardinals, ending a three-year conclave, the longest ever.
• The County of Toulouse is returned to the crown of France.
• Marco Polo departs from Venice with his father and uncle on his famous journey to Kublai Khan's China.
• The construction of Caerphilly Castle, the largest in Wales, is completed.
• Construction of the Belaya Vezha in Belarus is begun.

North Africa and the Middle East

Baibars captured the Krak des Chevaliers in Syria from the Knights Hospitaller in 1271.

• April 8 – Mamluk sultan Baibars continues his territorial expansion, capturing the strategically important castle Krak des Chevaliers from the Knights Hospitaller in present-day Syria.
• Mamluk sultan Baibars conducts an unsuccessful siege of the city of Tripoli, and also fails in an attempted naval invasion of Cyprus.
• Edward I of England and Charles of Anjou arrive in Acre, starting the Ninth Crusade against Baibars; however, they are unable to capture any territory and a peace is quickly negotiated.

Asia

• September 12 – According to the followers of Nichiren Buddhism, the sect's founder, Nichiren, reaches a turning point known as hosshaku kempon as he discards his identity as a mortal priest and begins to reveal himself as a reincarnation of the Buddha.
• December 18 – Kublai Khan renames his empire "Yuan" (元 yuán), officially marking the start of the Yuan Dynasty of China.
• The Nakhi kingdom of the northern Himalayan foothills is annexed by the Yuan Dynasty.

Births

• May 25 – Shah Jalal of Bengal (d. 1346)
• May – Joan of Acre, daughter of King Edward I of England (d. 1307)