* 1823 – Joseph Medill, American editor, publisher, and politician ( d. 1899 )

* 1823 – Alexander Ostrovsky, Russian playwright ( d. 1886 )

* 1823 – Goldwin Smith, English-Canadian historian and journalist ( d. 1910 )

* 1823 – Gotthold Eisenstein, German mathematician ( d. 1852 )

* 1740 – Pope Pius VII ( d. 1823 )

Alfred Russel Wallace, OM, FRS ( 8 January 1823 – 7 November 1913 ) was a British naturalist, explorer, geographer, anthropologist and biologist.

* 1759 – Jacques Widerkehr, Alsatian composer and cellist ( d. 1823 )

* 1772 – David Ricardo, English political economist ( d. 1823 )

* Mike Fink ( c. 1770 / 1780 – c. 1823 ) called " king of the keelboaters ", was a semi-legendary brawler and river boatman who exemplified the tough and hard-drinking men who ran keelboats up and down the Ohio and Mississippi Rivers.

* 1823 – Hugh Stowell Brown, English minister ( d. 1886 )

During 1823 – 1931 the grown settlement was known as Ust-Abakanskoye, 1914 – 1925: Abakan, 1925 – 1931: Khakassk.

* 1743 – Edmund Cartwright, English clergyman and inventor of the power loom ( d. 1823 )

* 1823 – Jacques Charles, French chemist ( b. 1746 )

* 1889 – Youssef Karam, Lebanese nationalist leader ( b. 1823 )

* Pope Pius VII ( 1742 – 1823, r. 1800 – 23 )

The construction commenced around the courtyard with the East Wing ( The King's Library ) in 1823 – 1828, followed by the North Wing in 1833 – 1838, which originally housed among other galleries a reading room, now the Wellcome Gallery.

#** Constance Marie Bonaparte ( 1823 – 1876 )

One Pipiolo leader from the south, Ramón Freire, rode in and out of the presidency several times ( 1823 – 1827, 1828, 1829, 1830 ) but could not sustain his authority.

* Terence MacManus ( c. 1823 – 1861 ), leader in Young Irelander Rebellion of 1848

In eight years of active service as an officer, he served two and a half years in a surveying ship in the Mediterranean ( 1818 – 21 ), one and a half years in a surveying sloop in the English Channel and off the coast of Ireland ( 1823 – 24 ), and one and a half years as Surveyor of the frigate during a voyage ( 1824 – 26 ) to and from the Hawaiian Islands ( then known as the " Sandwich islands ").

* 1823 – Antoine Eugène Alfred Chanzy, French general ( d. 1883 )

* Alfred Russel Wallace ( 1823 – 1913 ), founder of modern biogeography and the Wallace line.

A photograph of Alfred Russel Wallace ( 1823 – 1913 ) taken in Singapore in 1862

* November 7 – Alfred Russel Wallace, Welsh biologist ( b. 1823 )

* Alfred Diver ( 1823 – 1876 ), English cricketer

The scientific theory of biogeography grows out of the work of Alexander von Humboldt ( 1769 – 1859 ), Hewett Cottrell Watson ( 1804 – 1881 ), Alphonse de Candolle ( 1806 – 1893 ), Alfred Russel Wallace ( 1823 – 1913 ), Philip Lutley Sclater ( 1829 – 1913 ) and other biologists and explorers.

They included chemist and physicist William Crookes ( 1832 – 1919 ), evolutionary biologist Alfred Russel Wallace ( 1823 – 1913 ) and Nobel-laureate physiologist Charles Richet.

In 1823 Llanbadoc, just across the river from Usk, was the birthplace of Alfred Russel Wallace, notable proponent of the theory of evolution.

By Vincent Wanostrocht, LL. D., Alfred House Academy, Camberwell, 1823, 12mo ; xi.

* Alfred Russel Wallace ( 1823, b. Monmouthshire ), evolutionary theorist, lived in Neath during 1841 / 2 and attended lectures given by the area's scientific societies ;

Antoine Eugène Alfred Chanzy ( 18 March 1823 – 4 January 1883 ) was a French general, notable for his successes during the Franco-Prussian War and as a governor of Algeria.

Among his many and varied parts may be mentioned Hamlet, King Lear, Macbeth, Shylock, Richard III, Wolsey, Benedick in Much Ado About Nothing, Richelieu, David Garrick, Hernani, Alfred Evelyn, Lanciotto in George Henry Bokers ( 1823 – 1890 ) Francesca da Rimini, and Janies Harebell in The Man o ' Airlie.

In August 1832 he married Fanny Sommer ; they had two children, Ernst Alfred Christian von Stockmar ( 1823 – 1886 ), and Carl August von Stockmar ( 1836 – 1909 ).

The biologist and spiritualist Alfred Russel Wallace ( 1823 – 1913 ) believed that qualitative novelties could arise through the process of spiritual evolution, in particular the phenomena of life and mind, Wallace attributed these novelties to a supernatural agency.

Charles Darwin ( 1809 — 1882 ) and Alfred Russel Wallace ( 1823 — 1913 ) published their theory of evolution by natural selection in 1858, with Darwin's Origin of Species following a year later.

* Robert Amsler & Theodor H. Erismann: Jakob-Amsler Laffon 1823 – 1912 Alfred Amsler 1857 – 1940 Pioniere der Prüfung und Präzision.

Other versions of the phrase are " It is forged slowly and painfully, link by link, with blood and sweat and tears " ( Lord Alfred Douglas, 1919 ), " Blood, sweat, and tear-wrung millions " ( Lord Byron, 1823 ), and "... mollifie / It with thy teares, or sweat, or blood " ( John Donne, 1611 ).

Among his students were British landscape artist Henry Mark Anthony ( 1817 – 1886 ), British history painters Edward Armitage R. A. ( 1817 – 1896 ) and Charles Lucy ( 1814 – 1873 ), and American painter / photographer Alfred L. Boisseau ( 1823 – 1901 ).

Alfred Émile Léopold Stevens ( 11 May 1823 – 24 August 1906 ) was a Belgian painter.

* Alfred Stevens ( painter ) ( 1823 – 1906 ), Belgian painter

Besides, the invention of the Linzer Torte is subject of numerous legends, reporting on a Viennese confectioner named Linzer ( as given by Alfred Polgar ) or the Franconian sugar baker Johann Konrad Vogel ( 1796 – 1883 ), who about 1823 at Linz started the mass production of the cake that made it famous around the world.

* Alfred Russel Wallace ( 1823 – 1913 ), British naturalist