The 1830s

1830 CE71 entries

1831 CE82 entries

• September 8– Battle of Warsaw: The Army of Russia takes the Polish capital after a two-day battle to crush the Polish uprising.
• October 9 – Ioannis Kapodistrias, Greek head of state and founder of Greek independence, is assassinated in Nafplion.
• December 27 – Charles Darwin embarks from Plymouth on the second voyage of HMS Beagle which will be the foundation for his life of scientific study.

1832 CE76 entries

1833 CE67 entries

• July 20 – A mob in Jackson County, Missouri, destroys the printing office of the early Church of Jesus Christ of Latter-day Saints containing what becomes known as The Doctrine and Covenants.
• August 12 – The settlement of Chicago is established by 350 settlers at the estuary of the Chicago River in the U.S. state of Illinois.
• August 29 – The Parliament of the United Kingdom votes to pass the Factory Acts, limiting child labour.

1834 CE72 entries

• February 3 – Wake Forest University is founded as the Wake Forest Manual Labor Institute in Wake Forest, North Carolina.
• March – John Scott Russell's Scottish Steam Carriage Company begins operating a regular passenger service in west central Scotland on the open road between Glasgow and Paisley, Renfrewshire.
• May 19 – The Peasants' Revolt in Egyptian-ruled Palestine begins; it is suppressed in August.

1835 CE85 entries

• May 11 – Matua, High Priest (taura tupua) of the Polynesian island of Mangareva, is baptized into the Roman Catholic Church.
• July – The Bertelsmann company is founded by Carl Bertelsmann as a religious printer and publisher in Prussia.
• November 27 – Two London men, James Pratt and John Smith, are hanged in front of Newgate Prison in London, after a conviction of buggery. They are the last to suffer capital punishment for homosexual acts in England.

1836 CE87 entries

• February 29 - Giacomo Meyerbeer's opera, Les Huguenots is performed for the first time in Paris, France.
• October 2 – Charles Darwin returns to England aboard , with biological data he will later use to develop his theory of evolution, having left South America on August 17.
• November 28 – The University of London is established by Royal Charter, with University College London and King's College London named as the first affiliated colleges.

1837 CE63 entries

• July 13 – Queen Victoria moves from Kensington Palace into Buckingham Palace, the first reigning British monarch to make this, rather than St James's Palace, as her London home.
• October 30 – The Tsarskoye Selo Railway, the first in the Russian Empire, opens between Saint Petersburg Tsarskoselsky station and Tsarskoye Selo (modern-day Pushkin), engineered by Franz Anton von Gerstner.
• October 31 – In what will become the world's leading consumer goods brand, Procter & Gamble is founded in Ohio in the United States.

1838 CE68 entries

• January 11 – At Morristown, New Jersey, Samuel Morse, Alfred Vail and Leonard Gale give the first public demonstration of Morse's new invention, the telegraph.
• March 13 – A combination of rain and melting snow causes the Danube River to overflow its banks, washing away villages in western Hungary and inundating the twin cities that become Budapest. More than 150 people are drowned and Europe's nations come to Hungary's aid to prevent the spread of famine and disease.
• November 16 – Austria: Moravia opens the final section of Emperor Ferdinand Northern Railway (Rajhrad–Brno) for exhibition (preliminary) use.

1839 CE84 entries

• January – The first parallax measurement of the distance to Alpha Centauri is published by Thomas Henderson.
• March 9 – Prussia imposes the Child Labor Law of 1839, becoming the first nation in the world to place restrictions on child labor.
• June 3 – Destruction of opium at Humen begins, casus belli for Britain to open the 3-year First Opium War against Qing dynasty China. A rapid rise in the sale of opium in China to over 40,000 chests (~56,000 kg per annum) has caused the Chinese government to dispatch scholar-official Lin Zexu to Guangzhou to deal with the growing problem of opium addiction.