1820: Year
1820 (MDCCCXX) was a leap year starting on Saturday (link will display the full calendar) 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 first year of the 1820s decade.
At the beginning of 1820, the Gregorian calendar was only 12 days ahead of the Julian calendar, which actually stayed in localized use just before 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 |
Events
- Venus de Milo discovered.
- Hans Christian Ørsted discovers the relationship between electricity and magnetism.
Births
- 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
- George III of the United Kingdom (b. 1738)
- Daniel Boone (b. 1734)
Books
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