Causes include controversy over admitting Missouri as a slave state in 1820, the acquisition of Texas as a slave state in 1845 and the status of slavery in western territories won as a result of the Mexican – American War and the resulting Compromise of 1850.

* 1788 – Adoniram Judson, American missionary ( d. 1850 )

* 1850 – Reginald Heber Roe, Australian academic and educator ( d. 1926 )

* 1802 – Nikolaus Lenau, Austrian poet ( d. 1850 )

* 1850 – Charles Richet, French physiologist, Nobel Prize laureate ( d. 1935 )

The 1830 – 1850 period later became known as the era of Jacksonian democracy.

His father was a cultured man, and his mother was the sister of Raphael Georg Kiesewetter ( 1773 – 1850 ), the musical archaeologist and collector.

* 1850 – Marcelo H. del Pilar, Filipino writer, journalist, and revolutionary ( d. 1896 )

Albert Goodwill Spalding ( Byron, Illinois September 2, 1850 – September 9, 1915 in Point Loma, San Diego, California ) was a professional baseball player, manager and co-founder of A. G. Spalding sporting goods company.

* 1918 – Karl Ferdinand Braun, German physicist, Nobel Prize laureate ( b. 1850 )

* John Pryor, 1846 – 1850

* 1770 – Georg Sverdrup, Norwegian philologist ( d. 1850 )

* 1850 – Luise Adolpha Le Beau, German composer ( d. 1927 )

* 1770 – William Wordsworth, English poet ( d. 1850 )

* 1850 – William Lisle Bowles, English poet and critic ( b. 1762 )

The estate was sold on 4 June 1883 to Sir Herbert Samuel Leon ( 1850 – 1926 ), a financier and Liberal MP.

* Frédéric Bastiat ( 1801 – 1850 ), classical-liberal author and political economist

The Christadelphian community in Britain effectively dates from Thomas's first lecturing tour ( May 1848 – October 1850 ).

** Leonard Darwin ( 1850 – 1943 ), soldier, politician, and activist

* 1850 – History of New Zealand: The Charlotte-Jane and the Randolph bring the first of the Canterbury Pilgrims to Lyttelton, New Zealand.

* 1778 – Joseph Louis Gay-Lussac, French physicist and chemist ( d. 1850 )

* 1850 – William Sturgeon, English physicist and inventor ( b. 1783 )

* 1935 – Charles Richet, French physiologist, Nobel laureate ( b. 1850 )

* 1761 – Marie Tussaud, French creator of wax sculptures ( Madame Tussauds ) ( d. 1850 )

His first wife, Juliet Macpherson ( c. 1776 – 1850 ), was a daughter of James Macpherson ( 1736 – 1796 ), a probable translator of Ossian poems.

As a young man, Nobel studied with chemist Nikolai Zinin ; then, in 1850, went to Paris to further the work ; and, at 18, he went to the United States for four years to study chemistry, collaborating for a short period under inventor John Ericsson, who designed the American Civil War ironclad USS Monitor.

This led to the third cause of instability of worth, the " Independence of the American Kingdoms ," recognized between 1823 and 1850.

For example, Lowell, Massachusetts, considered to be " The Cradle of the American Industrial Revolution ," has of canals, built from around 1790 to 1850, that provided water power and a means of transportation for the city.

In 1850 Sultan Selim of Johanna island seized the American whaler Maria and imprisoned her commander, named Moores.

* 1850 – Emma Abbott, American singer ( d. 1891 )

* 1924 – Samuel Gompers, American labor leader ( b. 1850 )

Edward Bellamy ( March 26, 1850 – May 22, 1898 ) was an American author and socialist, most famous for his utopian novel, Looking Backward, a Rip Van Winkle-like tale set in the distant future of the year 2000.

Emma Abbott ( December 9, 1850 – January 5, 1891 ) was an American operatic soprano and impresario known for her pure, clear voice of great flexibility and volume.

* 1908 – Pat Garrett, American gunslinger ( b. 1850 )

In the decades of 1840 and 1850 Honduras participated in several failed attempts to restore Central American unity, such as the Confederation of Central America ( 1842 – 1845 ), the covenant of Guatemala ( 1842 ), the Diet of Sonsonate ( 1846 ), the Diet of Nacaome ( 1847 ) and National Representation in Central America ( 1849 – 1852 ).

Joseph Labadie ( April 18, 1850 – October 7, 1933 ) was an American labor organizer, individualist anarchist, social activist, printer, publisher, essayist, and poet.

Its existence was predicted in 1902 independently and almost simultaneously by the American electrical engineer Arthur Edwin Kennelly ( 1861 – 1939 ) and the British physicist Oliver Heaviside ( 1850 – 1925 ).

* 1850 – Joseph Charles Arthur, American botanist ( d. 1942 )

* 1850 – Samuel Gompers, American labor leader ( d. 1924 )

* 1850 – Annie Armstrong, American missionary ( d. 1938 )

* 1850 – John Wellborn Root, American architect ( d. 1891 )

* 1850 – Rose Hartwick Thorpe, American poet ( d. 1939 )

Its existence was predicted in 1902 independently and almost simultaneously by the American electrical engineer Arthur Edwin Kennelly ( 1861 – 1939 ) and the British physicist Oliver Heaviside ( 1850 – 1925 ).

In 1850 he married an American college teacher, Elizabeth Cabot Cary Agassiz, who later wrote introductory books about natural history and, after his death, a lengthy biography of her husband.

* 1850 – Ross Barnes, American baseball player ( d. 1915 )

* 1850 – Henry Cabot Lodge, American statesman ( d. 1924 )

* 1810 – Margaret Fuller, American journalist ( d. 1850 )

* 1846 – Edward Baker Lincoln, American son of Abraham Lincoln ( d. 1850 )