In 1823, the Columbian School, the first normal school in the United States, was founded in Concord, Vermont by the Reverend Samuel Read Hall.

In the spring of 1823, the entire family moved when Reverend Beman took a position at the First Presbyterian Church in Troy, New York.

He married Caroline Frances Barham, ( 22 July 1823 – 1 August 1912 ), second daughter of the Reverend Richard Harris Dalton Barham.

An English example is William Hazlitt's Liber Amoris ( 1823 ), a painful examination of the writer's love-life.

* In 1823, William Prout discovered that stomach juices contain hydrochloric acid.

" In 1822 Polk resigned his position as clerk to run his successful campaign for the Tennessee state legislature in 1823, in which he defeated incumbent William Yancey, becoming the new representative of Maury County.

* William Henry Monk ( 1823 – 1889 ), English hymn tune writer

* Sumner, William Hyslop, An Inquiry Into the Importance of the Militia to a Free Commonwealth: In a Letter from William H. Sumner ... to John Adams, Late President of the United States ; with His Answer, Cummings and Hilliard, Boston, 1823

* 1883 – William Siemens, German engineer ( b. 1823 )

William Webb Ellis is often credited with the invention of running with the ball in hand in 1823 at Rugby School when he allegedly caught the ball while playing football and ran towards the opposition goal.

The origin of rugby football is reputed to be an incident during a game of English school football at Rugby School in 1823 when William Webb-Ellis is said to have picked up the ball and run with it.

Following the death of his friend the painter William Green in 1823, Wordsworth mended relations with Coleridge.

* 1823 – William Webb Ellis " invents " Rugby football.

* April 12 – William Marcy Tweed, American politician ( b. 1823 )

The name " Portland cement " is also recorded in a directory published in 1823 being associated with a William Lockwood, Dave Stewart, and possibly others.

** William Amherst, 1st Earl Amherst, Governor-General of India from August 1823 to February 1828

** ( Carl ) Wilhelm Siemens ( known as ( Charles ) Wilhelm or Sir William Siemens ) ( 1823, Lenthe-1883 ), brother of Werner von Siemens

The first county election was held on March 1, 1823, with 61 voters participating to elect the first three county commissioners — William Offield, James Blevins and John McCollough — who then ordered that the first jail and courthouse be built.

* Sir William Clayton ( architect ) ( 1823 – 1877 ), New Zealand architect

Her mother was Mary Cadwalader Rawle ( 1850 – 1923 ) whose maternal grandfather was John Cadwalader ( 1805 – 1879 ) and father was lawyer William Henry Rawle ( 1823 – 1889 ).

King William ordered the planning of the canal, and construction started in 1823.

Henry Poston, John Andrews, William Alexander and James Holbert were appointed commissioners to locate the county seat, and on September 22, 1822, D. Murphy donated of land for that purpose which the county court accepted on February 27, 1823.

In 1823, part of Covington County became Bainbridge County, most likely named after William Bainbridge, who became an American naval hero during the War of 1812.

The name comes from Benjamin O ' Fallon, a nephew of Captain William Clark and an Indian agent for the upper Missouri region from 1823 to 1827.

* William Jay Smith ( Tennessee politician ) ( 1823 – 1913 ), member of the U. S. House of Representatives from Tennessee

The County Commissioners first met on May 5, 1823, at the house of William Conner.

Charles William Siemens ( originally Carl Wilhelm Siemens and later Sir William Siemens ) ( 4 April 1823 – 19 November 1883 ) was a German-born engineer who for most of his life worked in Britain and later became a British subject.

When Buckland first discovered the skeleton in 1823, he misjudged both its age and its sex.

* 1823 — Buckland finds a human skeleton with mammoth remains at Paviland Cave on the Gower Peninsula, but at the time it is not accepted that this showed they coexisted.

The latter name is derived from a hatter's shop which was situated in front of one of the first bus stations in Nantes, France in 1823.

In October 1823, he entered the Lycée Louis-le-Grand, and despite some turmoil in the school at the beginning of the term ( when about a hundred students were expelled ), Galois managed to perform well for the first two years, obtaining the first prize in Latin.

The term feudalism is recent, first appearing in French in 1823, Italian in 1827, English in 1839, and in German in the second half of the nineteenth century.

Among the most important figures of the federal era include the first democratically elected president in Honduras, Dionisio de Herrera, a lawyer, whose government, begun in 1824 established the first constitution, Gen. Francisco Morazán, Federal President 1830-1834 and 1835 – 1839, whose figure embodies the ideal American Unionist, and José Cecilio del Valle, editor of the Declaration of Independence signed in Guatemala on September 15, 1821 and Foreign Minister of Mexico in 1823.

He first entered parliament in 1819 as Whig member for Peterborough, representing that constituency with a short break ( 1822 – 1823 ) till 1830, when he was elected for the borough of Malton.

In early 1823, Niels Abel published his first article in " Magazin for Naturvidenskaberne ", Norway's first scientific journal, which had been co-founded by Professor Hansteen.

The paradox is commonly attributed to the German amateur astronomer Heinrich Wilhelm Olbers, who described it in 1823, but Harrison shows convincingly that Olbers was far from the first to pose the problem, nor was his thinking about it particularly valuable.

* 1823 – Charles Macintosh of Scotland sells the first raincoat.

Between 1821 and 1824, first and second national assemblies were held, and the constitutions of 1822 and of 1823 were established.

* February 3, 1823 – Gioachino Rossini's Semiramide is first performed.

* President James Monroe first stated the Monroe Doctrine during his seventh annual State of the Union Address to Congress on December 2, 1823.

On 10 December 1823, she found the first complete Plesiosaurus, and in 1828 the first British example of the flying reptiles known as pterosaurs, called a flying dragon when it was displayed at the British Museum, followed by a Squaloraja fish skeleton in 1829.

In 1823 she discovered a second even more complete plesiosaur skeleton ( the first one had been missing the skull ).

The first procedure for completing the Knight's Tour was Warnsdorff's rule, first described in 1823 by H. C. von Warnsdorff.

Round the episode of the Innominato, historically identified with Bernardino Visconti, the first manuscript of the novel The Betrothed ( in Italian I Promessi sposi ) began to grow into shape, and was completed in September 1823.

The position of Speaker first gained power under Henry Clay ( 1811 – 1814, 1815 – 1820, and 1823 – 1825 ).

* Charles Grant ( 1746 – 1823 ), administrator, chairman of the directors of the British East India Company, father of the first Lord Glenelg

In 1823, he wrote his first article — a letter to the journal Le corsaire defending Spontini's La vestale.

Shortly before his death, Pius VII sent him as Auditor to Chile and Peru in 1823 and 1825 to assist the Apostolic Nuncio, Monsignore Giovanni Muzi and Monsignore Bradley Kane, in the first mission to post-revolutionary South America .< ref >

John Oxley was the first European to explore the river who named it after the Governor of New South Wales, Thomas Brisbane in 1823.