AD 1274
| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 12th century – 13th century – 14th century |
| Decades: | 1240s 1250s 1260s – 1270s – 1280s 1290s 1300s |
| Years: | 1271 1272 1273 – 1274 – 1275 1276 1277 |
| Gregorian calendar | 1274 MCCLXXIV |
| Ab urbe condita | 2027 |
| Armenian calendar | 723 ԹՎ ՉԻԳ |
| Assyrian calendar | 6024 |
| Balinese saka calendar | 1195–1196 |
| Bengali calendar | 681 |
| Berber calendar | 2224 |
| English Regnal year | 2 Edw. 1 – 3 Edw. 1 |
| Buddhist calendar | 1818 |
| Burmese calendar | 636 |
| Byzantine calendar | 6782–6783 |
| Chinese calendar | 癸酉年 (Water Rooster) 3970 or 3910 — to — 甲戌年 (Wood Dog) 3971 or 3911 |
| Coptic calendar | 990–991 |
| Discordian calendar | 2440 |
| Ethiopian calendar | 1266–1267 |
| Hebrew calendar | 5034–5035 |
| Hindu calendars | |
| - Vikram Samvat | 1330–1331 |
| - Shaka Samvat | 1195–1196 |
| - Kali Yuga | 4374–4375 |
| Holocene calendar | 11274 |
| Igbo calendar | 274–275 |
| Iranian calendar | 652–653 |
| Islamic calendar | 672–673 |
| Japanese calendar | Bun'ei 11 (文永１１年) |
| Javanese calendar | 1184–1185 |
| Julian calendar | 1274 MCCLXXIV |
| Korean calendar | 3607 |
| Minguo calendar | 638 before ROC 民前638年 |
| Nanakshahi calendar | −194 |
| Thai solar calendar | 1816–1817 |
| Tibetan calendar | 阴水鸡年 (female Water-Rooster) 1400 or 1019 or 247 — to — 阳木狗年 (male Wood-Dog) 1401 or 1020 or 248 |
1274 (MCCLXXIV) was a common year starting on Monday of the Julian calendar, the 1274th year of the Common Era (CE) and Anno Domini (AD) designations, the 274th year of the 2nd millennium, the 74th year of the 13th century, and the 5th year of the 1270s decade. As of the start of 1274, the Gregorian calendar was 7 days ahead of the Julian calendar, which was the dominant calendar of the time.
Events
- May 7 – The Second Council of Lyons, held by the leadership of the Roman Catholic Church convenes to consider the conquest of the Holy Land via Crusades and address the East-West Schism with the Byzantine church. The Council eventually approves a tithe to support efforts to conquer the Holy Land from Muslims, and reaches apparent resolution of the schism which ultimately proves unsuccessful.
- November – The diet at Nuremberg orders that all crown estates seized since the death of Frederick II, Holy Roman Emperor be restored to Rudolph I of Germany; almost all European rulers agree, with the notable exception of King Otakar II of Bohemia, who had benefited greatly by conquering or otherwise coming into possession of many of those lands.
- Pope Gregory X decrees that conclaves (meetings during which the electors have no contact with the outside) should be used for papal elections, reforming the electoral process which had taken over three years to elect him.