1820
year
(Redirected from AD 1820)
1820 (MDCCCXX) was a leap year starting on Saturday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1820th year of the Common Era (CE) and Anno Domini (AD) designations, the 820th year of the 2nd millennium, the 20th year of the 19th century, and the 1st year of the 1820s decade. As of the start of 1820, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.
| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 18th century – 19th century – 20th century |
| Decades: | 1790s 1800s 1810s – 1820s – 1830s 1840s 1850s |
| Years: | 1817 1818 1819 – 1820 – 1821 1822 1823 |
| Gregorian calendar | 1820 MDCCCXX |
| Ab urbe condita | 2573 |
| Armenian calendar | 1269 ԹՎ ՌՄԿԹ |
| Assyrian calendar | 6570 |
| Balinese saka calendar | 1741–1742 |
| Bengali calendar | 1227 |
| Berber calendar | 2770 |
| British Regnal year | 60 Geo. 3 – 1 Geo. 4 |
| Buddhist calendar | 2364 |
| Burmese calendar | 1182 |
| Byzantine calendar | 7328–7329 |
| Chinese calendar | 己卯年 (Earth Rabbit) 4516 or 4456 — to — 庚辰年 (Metal Dragon) 4517 or 4457 |
| Coptic calendar | 1536–1537 |
| Discordian calendar | 2986 |
| Ethiopian calendar | 1812–1813 |
| Hebrew calendar | 5580–5581 |
| Hindu calendars | |
| - Vikram Samvat | 1876–1877 |
| - Shaka Samvat | 1741–1742 |
| - Kali Yuga | 4920–4921 |
| Holocene calendar | 11820 |
| Igbo calendar | 820–821 |
| Iranian calendar | 1198–1199 |
| Islamic calendar | 1235–1236 |
| Japanese calendar | Bunsei 3 (文政３年) |
| Javanese calendar | 1747–1748 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4153 |
| Minguo calendar | 92 before ROC 民前92年 |
| Nanakshahi calendar | 352 |
| Thai solar calendar | 2362–2363 |
| Tibetan calendar | 阴土兔年 (female Earth-Rabbit) 1946 or 1565 or 793 — to — 阳金龙年 (male Iron-Dragon) 1947 or 1566 or 794 |
Events change
- Venus de Milo discovered.
- Hans Christian Ørsted discovers the relationship between electricity and magnetism.
Births change
- March 22 – John Brown, English cricketer (died 1893)
- May 12 – Florence Nightingale, Italian-born English nurse (died 1910)
- date unknown
- Anne Bronte, English novelist (died 1849)
- King Victor Emmanuel II of Italy (died 1873)
- Joseph Whitaker, English publisher (died 1896)
Deaths change
- George III of the United Kingdom (b. 1738)
- Daniel Boone (b. 1734)