| Millennium: | 2nd millennium |
|---|---|
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| Years: |
| 1810 by topic |
|---|
| Humanities |
| By country |
| Other topics |
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1810 MDCCCX |
| Ab urbe condita | 2563 |
| Armenian calendar | 1259 ԹՎ ՌՄԾԹ |
| Assyrian calendar | 6560 |
| Balinese saka calendar | 1731–1732 |
| Bengali calendar | 1217 |
| Berber calendar | 2760 |
| British Regnal year | 50 Geo. 3 – 51 Geo. 3 |
| Buddhist calendar | 2354 |
| Burmese calendar | 1172 |
| Byzantine calendar | 7318–7319 |
| Chinese calendar | 己巳年 (Earth Snake) 4507 or 4300 — to — 庚午年 (Metal Horse) 4508 or 4301 |
| Coptic calendar | 1526–1527 |
| Discordian calendar | 2976 |
| Ethiopian calendar | 1802–1803 |
| Hebrew calendar | 5570–5571 |
| Hindu calendars | |
| - Vikram Samvat | 1866–1867 |
| - Shaka Samvat | 1731–1732 |
| - Kali Yuga | 4910–4911 |
| Holocene calendar | 11810 |
| Igbo calendar | 810–811 |
| Iranian calendar | 1188–1189 |
| Islamic calendar | 1224–1225 |
| Japanese calendar | Bunka 7 (文化７年) |
| Javanese calendar | 1736–1737 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4143 |
| Minguo calendar | 102 before ROC 民前102年 |
| Nanakshahi calendar | 342 |
| Thai solar calendar | 2352–2353 |
| Tibetan calendar | 阴土蛇年 (female Earth-Snake) 1936 or 1555 or 783 — to — 阳金马年 (male Iron-Horse) 1937 or 1556 or 784 |
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1810 (MDCCCX) was a common year starting on Monday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1810th year of the Common Era (CE) and Anno Domini (AD) designations, the 810th year of the 2nd millennium, the 10th year of the 19th century, and the 1st year of the 1810s decade. As of the start of 1810, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.