1173
year
1173 (MCLXXIII) was a common year starting on Monday of the Julian calendar, the 1173rd year of the Common Era (CE) and Anno Domini (AD) designations, the 173rd year of the 2nd millennium, the 73rd year of the 12th century, and the 4th year of the 1170s decade. As of the start of 1173, the Gregorian calendar was 7 days ahead of the Julian calendar, which was the dominant calendar of the time.
| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 11th century – 12th century – 13th century |
| Decades: | 1140s 1150s 1160s – 1170s – 1180s 1190s 1200s |
| Years: | 1170 1171 1172 – 1173 – 1174 1175 1176 |
| Gregorian calendar | 1173 MCLXXIII |
| Ab urbe condita | 1926 |
| Armenian calendar | 622 ԹՎ ՈԻԲ |
| Assyrian calendar | 5923 |
| Balinese saka calendar | 1094–1095 |
| Bengali calendar | 580 |
| Berber calendar | 2123 |
| English Regnal year | 19 Hen. 2 – 20 Hen. 2 |
| Buddhist calendar | 1717 |
| Burmese calendar | 535 |
| Byzantine calendar | 6681–6682 |
| Chinese calendar | 壬辰年 (Water Dragon) 3869 or 3809 — to — 癸巳年 (Water Snake) 3870 or 3810 |
| Coptic calendar | 889–890 |
| Discordian calendar | 2339 |
| Ethiopian calendar | 1165–1166 |
| Hebrew calendar | 4933–4934 |
| Hindu calendars | |
| - Vikram Samvat | 1229–1230 |
| - Shaka Samvat | 1094–1095 |
| - Kali Yuga | 4273–4274 |
| Holocene calendar | 11173 |
| Igbo calendar | 173–174 |
| Iranian calendar | 551–552 |
| Islamic calendar | 568–569 |
| Japanese calendar | Jōan 3 (承安３年) |
| Javanese calendar | 1080–1081 |
| Julian calendar | 1173 MCLXXIII |
| Korean calendar | 3506 |
| Minguo calendar | 739 before ROC 民前739年 |
| Nanakshahi calendar | −295 |
| Seleucid era | 1484/1485 AG |
| Thai solar calendar | 1715–1716 |
| Tibetan calendar | 阳水龙年 (male Water-Dragon) 1299 or 918 or 146 — to — 阴水蛇年 (female Water-Snake) 1300 or 919 or 147 |
Events
change- Canonization of Saint Thomas à Becket, buried at Canterbury
- August 9th – Construction starts on the Leaning tower of Pisa
- Castle at Abergavenny was seized by the Welsh.
- Conversion to Christianity of Peter Waldo and the subsequent founding of the Waldensians.
- End of Qiandao era and start of Chunxi era of the Chinese emperor Xiaozong
- End of reign of Polish ruler Boleslaus IV of Poland and start of reign of Casimir II of Poland
- Eleanor of Aquitaine and her sons rebel against her husband Henry II of England in the Revolt of 1173-1174
- First recorded use of algebraic chess notation