1815

1815 (MDCCCXV) was a common year starting on Sunday in the Gregorian calendar and a common year starting on Friday in the Julian calendar.

Millennium:	2nd millennium
Centuries:	18th century – 19th century – 20th century
Decades:	1780s  1790s  1800s  – 1810s –  1820s  1830s  1840s
Years:	1812 1813 1814 – 1815 – 1816 1817 1818

1815 in other calendars

Gregorian calendar	1815 MDCCCXV
Ab urbe condita	2568
Armenian calendar	1264 ԹՎ ՌՄԿԴ
Assyrian calendar	6565
Balinese saka calendar	1736–1737
Bengali calendar	1222
Berber calendar	2765
British Regnal year	55 Geo. 3 – 56 Geo. 3
Buddhist calendar	2359
Burmese calendar	1177
Byzantine calendar	7323–7324
Chinese calendar	甲戌年 (Wood Dog) 4511 or 4451     — to — 乙亥年 (Wood Pig) 4512 or 4452
Coptic calendar	1531–1532
Discordian calendar	2981
Ethiopian calendar	1807–1808
Hebrew calendar	5575–5576
Hindu calendars
- Vikram Samvat	1871–1872
- Shaka Samvat	1736–1737
- Kali Yuga	4915–4916
Holocene calendar	11815
Igbo calendar	815–816
Iranian calendar	1193–1194
Islamic calendar	1230–1231
Japanese calendar	Bunka 12 (文化１２年)
Javanese calendar	1741–1742
Julian calendar	Gregorian minus 12 days
Korean calendar	4148
Minguo calendar	97 before ROC 民前97年
Nanakshahi calendar	347
Thai solar calendar	2357–2358
Tibetan calendar	阳木狗年 (male Wood-Dog) 1941 or 1560 or 788     — to — 阴木猪年 (female Wood-Pig) 1942 or 1561 or 789

Events

• Fresnel developed the theory of light diffraction.
• Napoleon loses the Battle of Waterloo and is sent to Saint Helena.

Births

• January 10 – John A. Macdonald, first Prime Minister of Canada (d. 1891)
• February 15 – Constantin von Tischendorf, German Biblical scholar (d. 1874)
• April 1 – Otto von Bismarck, German statesman (d. 1898)
• April 1 – Edward Clark, Governor of Texas (d. 1880)
• April 6 – Robert Volkmann, German composer (d. 1883)
• April 24 – Anthony Trollope, British writer (d. 1882)
• June 11 - Julia Margaret Cameron, British Indian photographer (d. 1879)
• August 5 – Edward John Eyre, explorer
• October 16 – Francis Lubbock, Governor of Texas (d. 1905)
• October 31 – Karl Weierstraß, German mathematician (d. 1897)
• November 2 – George Boole, English mathematician and philosopher (d. 1864)
• December 10 – Augusta Ada King (née Byron), Countess of Lovelace, early English computer pioneer (d. 1852)
• November 12 – Elizabeth Cady Stanton, American women's rights activist (d. 1902)
• December 21 – Thomas Couture, French painter (d. 1879)

Deaths

• January 8 – Edward Pakenham, British general (killed in battle) (born 1778)
• January 16 – Emma, Lady Hamilton, English mistress of Horatio Nelson (born 1765)
• February 24 – Robert Fulton, American inventor (born 1765)
• February 26 – Prince Josias of Coburg, Austrian general (born 1737)
• March 4 – Frances Abington, English actress (born 1737)
• March 5 – Franz Mesmer, German developer of hypnotism (born 1734)
• April 21 – Joseph Winston, American patriot and Congressman from North Carolina (born 1746)
• June 1 – Louis Alexandre Berthier, French marshal (born 1753)
• June 16 – Friedrich Wilhelm, Duke of Brunswick, German noble and general (killed in battle) (born 1771)
• June 18 – Thomas Picton, British general (killed in battle) (born 1758)
• June 18 – Claude-Etienne Michel, French general (killed in battle) (born 1772)
• June 18 – Guillaume Philibert Duhesme, French general (killed in battle) (born 1766)
• August 2 – Guillaume Marie Anne Brune, French marshal (murdered) (born 1763)
• August 6 – James A. Bayard (elder), U.S. Senator from Delaware (born 1767)
• September 9 – John Singleton Copley, American painter (born 1738)
• September 20 – Nicolas Desmarest, French geologist (born 1725)
• October 13 – Joachim Murat, French marshal and King of Naples (executed) (born 1767)
• December 3 – John Carroll (priest), first American Roman Catholic Archbishop (born 1735)
• December 7 – Michel Ney, French marshal (executed) (born 1769)
• December 29 – Saartjie Baartman, sideshow performer