Editing 1834 (section)

== Births ==

=== January–June ===
[[File:Die Gartenlaube (1866) b 557.jpg|thumb|Heinrich von Treitschke]]
[[File:Gottlieb Daimler 1890s2.jpg|thumb|110px|right|[[Gottlieb Daimler]].]]
* [[January 7]] – [[Johann Philipp Reis]], German physicist, inventor (d. [[1874]])
* [[January 15]] – [[Samuel Arza Davenport]], American politician (d. [[1911]])
* [[January 17]] – [[August Weismann]], German evolutionary biologist (d. [[1914]])
* [[January 20]] – [[Piet Joubert]], Boer politician, military commander (d. [[1900]])
* [[January 25]] – [[Alina Frasa]], Finnish ballerina (d. [[1899]])
* [[February 6]] – [[Edwin Klebs]], German-Swiss pathologist who discovered [[Diphtheria]] (d. [[1913]])
* [[February 8]] – [[Dmitri Mendeleev]], Russian chemist  (d. [[1907]])
* [[February 9]] – [[Felix Dahn]], German author (d. [[1912]])
* [[February 16]] – [[Ernst Haeckel]], German zoologist, philosopher (d. [[1919]])
* [[February 19]] – [[Charles Davis Lucas]], British [[Victoria Cross]] recipient (d. [[1914]])
* [[February 27]] – [[Charles C. Carpenter (admiral)|Charles C. Carpenter]], American admiral (d. [[1899]])
* [[March 5]] – [[Félix de Blochausen]], 6th Prime Minister of Luxembourg (d. [[1915]])
* [[March 16]] – [[James Hector|Sir James Hector]], Scottish geologist (d. [[1907]])<ref>{{cite book |last1=Dell |first1=R.K. |title=Dictionary of New Zealand Biography |date=1990 |publisher=Te Ara - the Encyclopedia of New Zealand |url=https://teara.govt.nz/en/biographies/1h15/hector-james |access-date=13 October 2021 |chapter=Hector, James}}</ref>
* [[March 17]] – [[Gottlieb Daimler]], German engineer, inventor (d. [[1900]])
* [[March 20]] – [[Charles W. Eliot]], American President of Harvard University (d. [[1926]])
* [[March 23]] – [[Julius Reubke]], German composer (d. [[1858]])
* [[March 24]]
** [[John Wesley Powell]], American explorer (d. [[1902]])
** [[William Morris]], English poet, artist (d. [[1896]])
* [[April 2]] – [[Paškal Buconjić]], Herzegovinian Catholic bishop (d. [[1910]])
* [[April 26]] – [[Charles Farrar Browne|Artemus Ward]], American humorist (d. [[1867]])
* [[May 20]] – [[Albert Niemann (chemist)|Albert Niemann]], German chemist (d. [[1861]])
* [[May 23]] – [[Carl Heinrich Bloch]], Danish sculptor (d. [[1890]])
* [[June 19]] – [[Charles Spurgeon]], English Baptist preacher (d. [[1892]])

=== July–December ===
[[File:Whistler Selbstporträt.jpg|thumb|right|110px|[[James McNeill Whistler]]]]
[[File:Edgar Degas self portrait 1855.jpeg|thumb|right|110px|[[Edgar Degas]]]]
[[File:Aleksis Kivi.jpg|thumb|right|110px|[[Aleksis Kivi]]]]
* [[July 2]] – [[Hendrick Peter Godfried Quack]], Dutch economist, historian (d. [[1917]])
* [[July 4]] – [[Christopher Dresser]], British designer influential in the Anglo-Japanese style (d. [[1904]])<ref>{{cite book|last=Whiteway|first=Michael|title=Christopher Dresser: A Design Revolution|url=https://books.google.com/books?id=GjdJAQAAIAAJ|year=2004|publisher=V&A Publications|location=London|isbn=978-1-85177-428-9}}</ref>
* [[July 10]] – [[James McNeill Whistler]], American painter, etcher (d. [[1903]])
* [[July 19]] – [[Edgar Degas]], French painter (d. [[1917]])
* [[July 2]] – [[Frédéric Auguste Bartholdi]], French sculptor (d. [[1904]])
* [[July 27]] – [[Miguel Grau Seminario]], Peruvian admiral (d. [[1879]])
* [[August 4]] – [[John Venn]], British mathematician (d. [[1923]])
* [[August 22]] – [[Samuel Pierpont Langley]], American astronomer, physicist, and aeronautics pioneer (d. [[1906]])
* [[August 31]] – [[Amilcare Ponchielli]], Italian composer (d. [[1886]])
* [[Heinrich von Treitschke]] (15 September 1834 – 28 April 1896) German historian, political writer, and National Liberal member of the Reichstag during the time of the German Empire.
* [[September 17]] – [[Robert Simpson (merchant)|Robert Simpson]], Scottish-Canadian businessman (d. [[1897]])
* [[September 28]] – [[William Montrose Graham Jr.]], American general (d. [[1916]])
* [[September 30]] – [[Louis P. Mouillard]], French artist, aviation pioneer (d. [[1897]])
* [[October 6]] – [[Walter Kittredge]], American composer (d. [[1905]])
* [[October 10]] – [[Aleksis Kivi]], Finnish national author (d. [[1872]])<ref>{{Britannica|319741|Aleksis Kivi}}</ref>
* [[November 8]] – [[Johann Karl Friedrich Zöllner]], German astrophysicist (d. [[1882]])
* [[November 13]] – [[Ignacio Manuel Altamirano]], Mexican writer (d. [[1893]])
* [[November 19]] – [[Georg Hermann Quincke]], German physicist (d. [[1924]])
* [[November 21]] – [[Hetty Green]], American businesswoman (d. [[1916]])
* [[November 28]] – [[Sophronia Farrington Naylor Grubb]], American activist (d. [[1902]])
* [[December 16]] – [[Léon Walras]], French economist (d. [[1910]])
* [[December 24]] – [[Augustus George Vernon Harcourt]], English chemist (d. [[1919]])

=== Date unknown ===
* [[Joseph Welland (missionary)|Joseph Welland]], Irish missionary and Reverend (d. [[1879]])