Editing 1821 (section)

== Births ==

=== January–June ===
[[File:James Longstreet.jpg|thumb|right|110px|[[James Longstreet]]]]
* [[January 1]] – [[Francisco de Paula Milán]] Mexican officier of the [[Mexican Armed Forces|Mexican Army]] (d. 1883)
* [[January 2]] – [[Catherine Huggins]], British actor, singer, director and manager (d. 1887)
* [[January 8]]
** [[James Longstreet]], American Confederate general (d. 1904)
** [[W. H. L. Wallace]], American Civil War general (d. 1862)
* [[February 3]] – [[Elizabeth Blackwell]], first American female physician (d. 1910)
* [[February 11]] – [[Auguste Mariette|Auguste Edouard Mariette]], French Egyptologist (d. 1881)
* [[February 17]] – [[Lola Montez]], Irish-Spanish dancer, royal mistress (d. 1861)
* [[February 19]]
** [[Francis Preston Blair Jr.]], American politician, American Civil War officer (d. 1875)
** [[August Schleicher]], German linguist (d. 1868)
* [[March 1]] – [[Joseph Hubert Reinkens]], German [[Old Catholic Church|Old Catholic]] bishop (d. 1896)
* [[March 9]] – [[John Watts de Peyster]], American author, philanthropist, and soldier (d. 1907)
* [[March 12]] – Sir [[John Abbott]], 3rd [[Prime Minister of Canada]] (d. 1893)
* [[March 31]] – [[Henry Dunning Macleod]], Scottish economist (d. 1902)
* [[April 1]] – [[Princess Anka Obrenović]], Serbian princess (d. 1868)
* [[April 3]] – [[T. Pelham Dale|Fr. Thomas Pelham Dale]], English mystic (d. 1892)
* [[April 9]] – [[Charles Baudelaire]], French poet, writer (d. 1867)<ref>Charles Baudelaire, Richard Howard. ''Les Fleurs Du Mal''. David R. Godine Publisher, 1983, p.xxv. {{ISBN|0-87923-462-8}}, {{ISBN|978-0-87923-462-1}}.</ref> 
* [[April 12]] – [[Beauchamp Seymour, 1st Baron Alcester|Beauchamp Seymour]], British admiral (d. 1895)
* [[May 6]]
** [[Edmund Colhoun]], American admiral (d. 1897)
** [[Emilie Hammarskjöld]], Swedish-American musician (d. 1854)
* [[May 8]] – [[William Henry Vanderbilt]], American entrepreneur (d. 1885)
* [[May 16]] – [[Pafnuty Chebyshev]], Russian mathematician (d. 1894)
* [[May 17]] – [[Sebastian Kneipp]], German naturopath (d. 1897)
* [[May 18]] – [[Eduard von Pestel]], Prussian military officer and German general (d. 1908)
* [[May 24]] – [[Juan Bautista Topete]], Spanish admiral and politician (d. 1885)
* [[June 2]] – [[Ion C. Brătianu]], 2-Time Prime Minister of Romania (d. 1891)
* [[June 16]] – [[Old Tom Morris]], Scottish golfer (d. 1908)
* [[June 26]] – [[Bartolomé Mitre]], Argentine statesman, military figure, and author, 6th President of Argentina (d. 1906)

=== July–December ===
[[File:Portrait-Louis-Vuitton.jpg|thumb|right|110px|[[Louis Vuitton (designer)|Louis Vuitton]]]]
[[File:Rudolf Virchow NLM3.jpg|thumb|right|110px|[[Rudolf Virchow]]]]
[[File:Vasily Perov - Портрет Ф.М.Достоевского - Google Art Project.jpg|thumb|right|110px|[[Fyodor Dostoyevsky]]]]
* [[July 1]] – [[Anatole Jean-Baptiste Antoine de Barthélemy]], French archaeologist (d. [[1904]])
* [[July 2]] – [[Charles Tupper|Sir Charles Tupper]], 6th [[Prime Minister of Canada]] (d. [[1915]])
* [[July 6]] – [[Edmund Pettus]], American politician (d. [[1907]])
* [[July 9]]
** [[George Cavendish-Bentinck]], British Conservative politician (d. [[1891]])
** [[Adolphus Frederick Alexander Woodford]], British parson (d. [[1887]])
* [[July 13]] – [[Nathan Bedford Forrest]], American Confederate Civil War General, first [[Grand Wizard]] of the [[Ku Klux Klan]] (d. [[1877]])
* [[July 16]] – [[Mary Baker Eddy]], American founder of Christian Science (d. [[1910]])
* [[July 17]] – [[Friedrich Engelhorn]], German industrialist and founder of BASF (d. [[1902]])
* [[July 18]]
** [[Lucy Smith Millikin]], early [[Latter Day Saint]] and sister of [[Joseph Smith]] (d. [[1882]])
** [[Pauline Viardot]], French mezzo-soprano, composer (d. [[1910]])
* [[July 24]] – [[William Poole]], infamous member of New York City's [[Bowery Boys (gang)|Bowery Boys]] gang (d. [[1855]])
* [[July 27]] – [[George H. Cooper]], United States Navy admiral (d. [[1891]])
* [[August 10]] – [[Jay Cooke]], American financier (d. [[1905]])
* [[August 16]] – [[Arthur Cayley]], English mathematician (d. [[1895]])
* [[August 21]] – [[Louis Vuitton (designer)|Louis Vuitton]], French fashion designer (d. [[1892]])
* [[August 31]] – [[Hermann von Helmholtz]], German physician and physicist  (d. [[1894]])
* [[September 21]] – [[Andrei Alexandrovich Popov]], Russian admiral (d. [[1898]])
* [[September 28]] – [[Jonathan Clarkson Gibbs]], African-American minister, politician (d. [[1874]])
* [[October 13]] – [[Rudolf Virchow]], German physician, pathologist, biologist, and politician (d. [[1902]])
* [[October 17]] – [[Alexander Gardner (photographer)|Alexander Gardner]], Scottish photographer (d. [[1882]])
* [[November 7]] – [[Andrea Debono]], Maltese trader and explorer (d. [[1871]])<ref>{{Cite web |title=Prominent Sengleans |url=http://www.islalocalcouncil.com/promseng.htm |website=Senglea Local Council |archive-url=https://web.archive.org/web/20200216070552/http://www.islalocalcouncil.com/promseng.htm |archive-date=February 16, 2020}}</ref>
* [[November 11]] – [[Fyodor Dostoyevsky]], Russian writer (d. [[1881]])<ref>{{cite web |author=Morson, Gary Saul |date=7 November 2023 |title= Fyodor Dostoyevsky |publisher=Encyclopædia Britannica |url=http://britannica.com/biography/Fyodor-Dostoyevsky |access-date= 12 September 2015 }}</ref>
* [[November 24]] – [[Henry Thomas Buckle]], English historian sometimes called "the father of scientific history" (d. [[1862]])
* [[November 30]] – [[Frederick Temple]], [[Archbishop of Canterbury]] (d. [[1902]])
* [[December 1]] – [[John M. B. Clitz]], American admiral (d. [[1897]])
* [[December 12]] – [[Gustave Flaubert]], French writer (d. [[1880]])<ref>{{cite book|author=Gustave Flaubert|title=The Letters of Gustave Flaubert: 1830-1857|publisher=Harvard University Press|year=1980|page=1}}</ref>
* [[December 22]] – [[Junius Brutus Booth Jr.]], American actor, theatre manager (d. [[1883]])
* [[December 24]] – [[Gabriel García Moreno]], former [[President of Ecuador]] (d. [[1875]])
* [[December 25]] – [[Clara Barton]], first president of American Red Cross (d. [[1912]])

=== Date unknown ===
* [[Giuseppe Bonavia]], Maltese architect (d. 1885)
* [[Mazhar Nanautawi]], Indian freedom struggle activist (d. 1885)