In 1851, Douglass merged the North Star with Gerrit Smith's Liberty Party Paper to form Frederick Douglass ' Paper, which was published until 1860.

In 1851, Frederick William IV appointed Bismarck as Prussia's envoy to the Diet of the German Confederation in Frankfurt.

In March 1851, Frederick Scott Archer published his findings in " The Chemist " on the wet plate collodion process.

* January 4 – Frederick Selous, British explorer ( b. 1851 )

In July 1851, Frederick Engels ' father arrived to visit him in Manchester, England.

* 1851 – Introduction of the collodion process by Frederick Scott Archer.

Kilmer was born 6 December 1886 in New Brunswick, New Jersey, the fourth and youngest child, of Annie Ellen Kilburn ( 1849 – 1932 ), a minor writer and composer, and Dr. Frederick Barnett Kilmer ( 1851 – 1934 ), a physician and analytical chemist employed by the Johnson and Johnson Company and inventor of the company's baby powder.

The region west of Cape Girardeau was organized as a county in 1851 and named Bollinger County in honor of George Frederick Bollinger.

In a business climate where many patent holders were attacked for enforcing their rights, Talbot's behaviour was widely criticized, especially after 1851 when Frederick Scott Archer publicized the collodion process.

* Augustus Frederick Keppel, 5th Earl of Albemarle ( 1794 – 1851 )

His father was the eldest son and heir of King George I of Greece ( 1845 – 1913 ) and his wife Grand Duchess Olga Constantinovna of Russia ( 1851 – 1926 ); his mother was the daughter of Emperor Frederick III of Germany ( 1831 – 1888 ) and his wife Princess Victoria of the United Kingdom ( 1840 – 1901 ).

The elder Frederick, a Danish military officer, had been one ( and perhaps the foremost ) of the candidates of Christian VIII of Denmark in the 1840s to succeed to the Danish throne if the latter's male line died out, but renounced his rights to the throne in 1851 in favor of his sister, Louise.

In 1851, Frederick Scott Archer introduced a wet plate process, sometimes referred to as the collodion process after the carrier material used.

Further extensions opened to Frederick ( including the short Frederick Branch ) December 1, 1831, Point of Rocks April 2, 1832, Sandy Hook December 1, 1834 ( the connection to the Winchester and Potomac Railroad at Harpers Ferry opening in 1837 ), Martinsburg May 1842, Hancock June 1842, Cumberland November 5, 1842, Piedmont July 21, 1851, Fairmont June 22, 1852, and its terminus at Wheeling, West Virginia ( then part of Virginia ) on January 1, 1853.

In 1851, Victoria met her future husband, Prince Frederick William of Prussia ( 18 October 1831 – 15 June 1888 ), when he and his parents were invited to London by Queen Victoria and Prince Albert to attend the opening of the Great Exhibition.

In 1851 the famous equestrian statue of King Frederick II of Prussia was erected on the centre strip, designed by Christian Daniel Rauch.

Christian Friedrich ( or Frederick ) Wilhelm von der Ahe ( November 7, 1851 – June 5, 1913 ) was a German-American entrepreneur, best known as the owner of the St. Louis Brown Stockings of the American Association, now known as the St. Louis Cardinals.

The name Formica rufibarbis was first given to this ant by Lord Avebury in Britain in his important work Ants, Bees and Wasps in 1881, although the species had been noted ( misidentified as F. cunicularia ) by Frederick Smith in 1851.

* April 29-George Frederick Baird, politician and lawyer ( b. 1851 )

* William Frederick Waldegrave, 9th Earl Waldegrave ( 1851 – 1930 )

* Alexander William Frederick Fraser, 19th Lord Saltoun ( 1851 – 1933 )

George Augustus Frederick Brooke, younger son of the first Baronet, was the father of 1 ) Arthur Thomas Brooke ( d. 1893 ), a Captain in the Royal Navy, 2 ) Henry Francis Brooke ( 1836 – 1880 ), a Brigadier-General in the British Army, 3 ) Lionel Godolphin Brooke ( 1849 – 1931 ), a Brigadier-General in the Connaught Rangers, and 4 ) Frank Brooke ( 1851 – 1920 ), a businessman and public servant.

It was named after British explorer Frederick Courteney Selous ( 1851 – 1917 ), and their motto was pamwe chete, which, in the Shona language, roughly means " all together ", " together only " or " forward together ".

In 1851 The Illustrated London News said that it " seems to exhibit the peculiar beauties of Carnarvon Castle without its inconveniences " and in 1858 Sir George Gilbert Scott called it " the largest and most carefully and learnedly executed Gothic mansion of the present " and that it was " the very height of masquerading ".

* John Scott – Matilda ( 1827 ), The Colonel ( 1828 ), Rowton ( 1829 ), Margrave ( 1832 ), Touchstone ( 1834 ), Don John ( 1838 ), Charles the Twelfth ( 1839 ), Launcelot ( 1840 ), Satirist ( 1841 ), The Baron ( 1845 ), Newminster ( 1851 ), West Australian ( 1853 ), Warlock ( 1856 ), Imperieuse ( 1857 ), Gamester ( 1859 ), The Marquis ( 1862 )

" The area of Scott County, as well as much of southern Minnesota, was opened for settlement by two treaties signed at Mendota and Traverse des Sioux, in 1851 and 1853.

Cerro Gordo County was formed in 1851 and named after a battlefield in the Mexican War, where General Winfield Scott defeated the Mexican General Santa Anna on April 18, 1847.

* William Scott Ament ( born 1851 ), controversial American missionary to China criticized by Mark Twain

From 1851 to 1853, under the direction of Gilbert Scott, George Place, a Nottingham architect, worked on the church as lead architect, a major period of restoration occurred.

Daniel Scott Lamont ( February 9, 1851 – July 23, 1905 ) was the United States Secretary of War during Grover Cleveland's second term.

* Nick Carraway, the narrator of F. Scott Fitzgerald's The Great Gatsby, claims to be descended from the Dukes of Buccleuch, but simultaneously points out that this is not true — his family was ' founded ' by his grandfather's brother who came over in 1851.

* William Henry Scott ( politician ) ( 1799 – 1851 ), Canadian politician

* William George Spencer Scott Compton, 5th Marquess of Northampton ( 1851 – 1913 )

* William Scott Ament ( 1851 – 1909 ), controversial missionary to China ( 1851 – 1909 )

* John Scott – Glaucus ( 1834 ), Touchstone ( 1836, 1837 ), Woolwich ( 1851 ), West Australian ( 1854 )

In August 1851, English won his first election and was elevated to state representative from Scott County.

* John Halliday Scott ( 1851 – 1914 ), New Zealand university professor, artist and medical school dean

Dissatisfied with the poor definition and contrast of the calotype and the long exposures needed, Scott Archer invented the new process in 1848 and published it in The Chemist in March 1851, enabling photographers to combine the fine detail of the daguerreotype with the ability to print multiple paper copies like the calotype.

Daniel Scott Lamont ( February 9, 1851 – July 23, 1905 ) was the United States Secretary of War during Grover Cleveland's second term.

* James George Scott ( 1851 – 1935 ), known as George Scott, journalist and colonial Burmese administrator

Such collodion glass positives had been invented by Frederick Scott Archer in 1851 and the name Ambrotype was introduced in the United States by James Ambrose Cutting in 1854 when he patented a variation on Archer's original process.