| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1825 by topic |
|---|
| Humanities |
| By country |
| Other topics |
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1825 MDCCCXXV |
| Ab urbe condita | 2578 |
| Armenian calendar | 1274 ԹՎ ՌՄՀԴ |
| Assyrian calendar | 6575 |
| Balinese saka calendar | 1746–1747 |
| Bengali calendar | 1232 |
| Berber calendar | 2775 |
| British Regnal year | 5 Geo. 4 – 6 Geo. 4 |
| Buddhist calendar | 2369 |
| Burmese calendar | 1187 |
| Byzantine calendar | 7333–7334 |
| Chinese calendar | 甲申年 (Wood Monkey) 4522 or 4315 — to — 乙酉年 (Wood Rooster) 4523 or 4316 |
| Coptic calendar | 1541–1542 |
| Discordian calendar | 2991 |
| Ethiopian calendar | 1817–1818 |
| Hebrew calendar | 5585–5586 |
| Hindu calendars | |
| - Vikram Samvat | 1881–1882 |
| - Shaka Samvat | 1746–1747 |
| - Kali Yuga | 4925–4926 |
| Holocene calendar | 11825 |
| Igbo calendar | 825–826 |
| Iranian calendar | 1203–1204 |
| Islamic calendar | 1240–1241 |
| Japanese calendar | Bunsei 8 (文政８年) |
| Javanese calendar | 1752–1753 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4158 |
| Minguo calendar | 87 before ROC 民前87年 |
| Nanakshahi calendar | 357 |
| Thai solar calendar | 2367–2368 |
| Tibetan calendar | 阳木猴年 (male Wood-Monkey) 1951 or 1570 or 798 — to — 阴木鸡年 (female Wood-Rooster) 1952 or 1571 or 799 |
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1825 (MDCCCXXV) was a common year starting on Saturday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1825th year of the Common Era (CE) and Anno Domini (AD) designations, the 825th year of the 2nd millennium, the 25th year of the 19th century, and the 6th year of the 1820s decade. As of the start of 1825, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.