Lincoln in his late 30s – photo taken by one of Lincoln's law students around 1846

* 1846 – The Second Federal Republic of Mexico is established.

* 1846 – Anna Haining Bates, Canadian giant ( d. 1888 )

* Haliotis alfredensis Reeve, 1846-the Alfred's abalone – synonym: Haliotis speciosa Reeve, 1846, the splendid abalone

* Haliotis coccoradiata Reeve, 1846 – the reddish-rayed abalone

* Haliotis discus Reeve, 1846 – the disk abalone

** Haliotis diversicolor squamata Reeve, 1846 – synonym: Haliotis squamata – the scaly Australian abalone

* Haliotis jacnensis Reeve, 1846 – the Jacna abalone

* Haliotis rubiginosa Reeve, 1846 – synonym: Haliotis howensis, the Lord Howe abalone

Alcott's opposition to slavery also fueled his opposition to the Mexican – American War which began in 1846.

* 1846 – Charles Woodruff, American archer ( d. 1927 )

* 1846 – Luis Martín, Spanish religious leader ( d. 1906 )

* 1846 – The Donner Party of pioneers departs Springfield, Illinois, for California, on what will become a year-long journey of hardship, cannibalism, and survival.

* John Pryor, 1846 – 1850

* 1846 – The Smithsonian Institution is chartered by the United States Congress after James Smithson donates $ 500, 000.

* 1904 – Pierre Waldeck-Rousseau, French politician, 68th Prime Minister of France ( b. 1846 )

He married fourthly at the Dolmabahçe Palace, Constantinople, on 21 September 1866 to Georgian HH Hayranidil Kadın Efendi ( Kars, 2 November 1846 – Ortaköy Palace, Constantinople, 26 November 1898 ), and had two children.

* 1846 – Thornton Affair: Open conflict begins over the disputed border of Texas, triggering the Mexican-American War.

* 1763 – Domenico Dragonetti, Italian double bass virtuoso and composer ( d. 1846 )

In 1899, the memorial, by the Berlin sculptor Ernst Gustav Herter ( 1846 – 1917 ), finally came to rest, although subject to repeated vandalism, in the Bronx, at 164th Street and the Grand Concourse, or Joyce Kilmer Park near today's Yankee Stadium.

Lord George Bentinck, Conservative leader in the commons 1846 – 48

* Pope Gregory XVI ( 1765 – 1846, r. 1831 – 46 )

Scottish inventor Alexander Bain worked on chemical mechanical fax type devices and in 1846 was able to reproduce graphic signs in laboratory experiments.

His draw was such that some facilities were " crowded to suffocation "; an example was his hugely popular London Reception Speech, which Douglass delivered at Alexander Fletcher's Finsbury Chapel in May 1846.

* 1846 – The first officially recorded, organized baseball game is played under Alexander Cartwright's rules on Hoboken, New Jersey's Elysian Fields with the New York Base Ball Club defeating the Knickerbockers 23-1.

In 1846, Alexander Bain used punched tape to send telegrams.

* James Alexander, Jr., ( 1789 – 1846 ), born near Delta, United States Congressman from Ohio

In 1888, a work camp was established at Cumberland Gap by Scottish-born entrepreneur Alexander Arthur ( 1846 – 1912 ) to house workers needed to build a tunnel for the Knoxville, Cumberland Gap & Louisville Railroad.

In 1880, Canadian-born entrepreneur Alexander Arthur ( 1846 – 1912 ), representing the Scottish Carolina Timber and Land Company, arrived in Newport with ambitious plans to log the Pigeon valley.

* Post opposite El Paso del Norte ( 1849 – 1854 ): In 1846, Colonel Alexander Doniphan led 1st Regiment of Missouri mounted volunteers through El Paso del Norte, with victories at the Battle of El Brazito and the Battle of the Sacramento.

* Alexander Russell Webb ( 1846 – 1916 ), writer and publisher.

Although there was never actually a major league team in Hoboken, on June 19, 1846, the first officially recorded organized baseball match was played under Alexander Cartwright's rules on Hoboken's Elysian Fields with the New York Base Ball Club defeating the New York Knickerbockers 23-1.

* Alexander Milne Calder ( 1846 – 1923 ), American sculptor, father of:

Alexander Barrow ( W ), until December 29, 1846

In 1846 Morgan enlisted with his brother Calvin and uncle Alexander in the U. S. Army as a cavalry private during the Mexican-American War.

In New York City in 1846, Alexander Turney Stewart established the " Marble Palace " on the east-Broadway, between Chambers and Reade streets.

* George Grote, A History of Greece: From the earliest period to the close of the generation contemporary with Alexander the Great, 1846.

Abbé Gabet returned to Europe in late 1846 in the company of Alexander Johnston, secretary to John Francis Davis, British minister plenipotentiary to China.

His Army of the West ( 1846 ) consisted of 1600 men in the volunteer First and Second Regiments of Fort Leavenworth, Missouri Mounted Cavalry regiment under Alexander Doniphan ; an artillery and infantry battalion ; 300 of Kearny's 1st U. S. Dragoons ( light cavalry ) and about 500 members of the Mormon Battalion.

* James Alexander, 4th Earl of Caledon ( 1846 – 1898 )

: 1846: Alexander Russel

* M ' Clure, Alexander Wilson, The lives of John Wilson, John Norton, and John Davenport ( 1846 )

Alexander Heinrich Rudolph von Kluck ( 20 May 1846 – 19 October 1934 ) was a German general during World War I.

* Stuart married Frances Cornelia Baldwin ( 1815 – 1888 ), and with her had 8 children: Briscoe Baldwin Stuart ( 1837 – 1859 ), Alexander H. H. Stuart Jr. ( 1846 – 1867 ), Archibald Gerard Stuart ( 1858 – 1888 ), Eleanor Augusta Stuart ( 1838 – 1878 ), Frances Peyton Stuart ( born 1842 ), Mary Stuart ( born 1844 ), Susan Baldwin Stuart ( 1848 – 1867 ), and Margaret Briscoe Stuart ( 1855 – 1932 ).

Alexander Milne Calder ( August 23, 1846 – June 4, 1923 ) was an American sculptor best known for the architectural sculpture of Philadelphia City Hall.

* James Alexander, 4th Earl of Caledon ( 1846 – 1898 ), soldier and politician