|Ab urbe condita||2600|
|Balinese saka calendar||1768–1769|
|British Regnal year||10 Vict. 1 – 11 Vict. 1|
|Chinese calendar||丙午年 (Fire Horse)|
4543 or 4483
— to —
丁未年 (Fire Goat)
4544 or 4484
|- Vikram Samvat||1903–1904|
|- Shaka Samvat||1768–1769|
|- Kali Yuga||4947–4948|
|Japanese calendar||Kōka 4|
|Julian calendar||Gregorian minus 12 days|
|Minguo calendar||65 before ROC|
|Thai solar calendar||2389–2390|
1973 or 1592 or 820
— to —
1974 or 1593 or 821
|Wikimedia Commons has media related to 1847.|
1847 (MDCCCXLVII) was a common year starting on Friday of the Gregorian calendar and a common year starting on Wednesday of the Julian calendar, the 1847th year of the Common Era (CE) and Anno Domini (AD) designations, the 847th year of the 2nd millennium, the 47th year of the 19th century, and the 8th year of the 1840s decade. As of the start of 1847, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.
- January 4 – Samuel Colt sells his first revolver pistol to the U.S government.
- January 13 – The Treaty of Cahuenga ends fighting in the Mexican–American War in California.
- January 16 – John C. Frémont is appointed Governor of the new California Territory.
- January 17 – St. Anthony Hall fraternity is founded at Columbia University, New York City.
- January 30 – Yerba Buena, California is renamed San Francisco.
- February 5 – A rescue effort, called the First Relief, leaves Johnson's Ranch to save the ill-fated Donner Party (California-bound emigrants who became snowbound in the Sierra Nevada earlier this winter; some have resorted to survival cannibalism).
- February 22 – Mexican–American War: Battle of Buena Vista – 5,000 American troops under General Zachary Taylor use their superiority in artillery to drive off 15,000 Mexican troops under Antonio López de Santa Anna, defeating the Mexicans the next day.
- February 25 – State University of Iowa is founded in Iowa City, Iowa.
- March – First known publication of the classic joke "Why did the chicken cross the road?", in The Knickerbocker, or New-York Monthly Magazine.
- March 1
- March 4 – The 30th United States Congress is sworn into office.
- March 9 – Mexican–American War: United States forces under General Winfield Scott invade Mexico near Veracruz.
- March 14 – Verdi's opera Macbeth premieres at the Teatro della Pergola, in Florence, Italy.
- March 29 – Mexican–American War: United States forces under General Winfield Scott take Veracruz after a siege.
- April 5 – The world's first municipally-funded civic public park, Birkenhead Park in Birkenhead on Merseyside, England, is opened.
- April 15 – The Lawrence School, Sanawar is established in India.
- April 16 – New Zealand Wars: A minor Māori chief is accidentally shot by a junior British Army officer in Whanganui on New Zealand's North Island, triggering the Wanganui Campaign (which continues until July 23).
- April 25 – The brig Exmouth, carrying Irish emigrants from Derry bound for Quebec, is wrecked off Islay, with only three survivors from more than 250 on board.
- May – The Architectural Association School of Architecture is founded in London.
- May 7 – In Philadelphia, the American Medical Association (AMA) is founded.
- May 8 – The Nagano earthquake leaves more than 8,600 people dead in Japan.
- May 27 – Hamburg America Line, as predecessor of Hapag-Lloyd, a container logistics and cargo ocean transport based of Europe, founded in Germany.
- May 31 – Second Treaty of Erzurum: the Ottoman Empire cedes Abadan Island to the Persian Empire.
- June – E.H. Booth & Co. Ltd, which becomes the northern England supermarket chain Booths, is founded when tea dealer Edwin Henry Booth, 19, opens a shop called "The China House" in Blackpool.
- June 1 – The first congress of the Communist League is held in London.
- June 26 – The first passenger railway wholly within modern-day Denmark opens, from Copenhagen to Roskilde.[page needed]
- July 1 – The United States issues its first postage stamps (pictured).
- July 24 – After 17 months of travel, Brigham Young leads 148 Mormon pioneers into Salt Lake Valley, resulting in the establishment of Salt Lake City.
- July 26 – Liberia gains independence.
- July 29 – The Cumberland School of Law is founded at Cumberland University, in Lebanon, Tennessee. At the end of this year, only 15 law schools exist in the United States.
- August 12 – Mexican–American War: U.S. troops of General Winfield Scott begin to advance along the aqueduct around Lakes Chalco and Xochimilco in Mexico.
- August 20 – Mexican–American War – Battle of Churubusco: U.S. troops defeat Mexican forces.
- August – Yale Corporation establishes the first graduate school in the United States, as Department of Philosophy and the Arts (renamed Graduate School of Arts and Sciences in 1892).
- September 14 – Mexican–American War: U.S. general Winfield Scott enters Mexico City, marking the end of organized Mexican resistance.
- September 30 – The Vegetarian Society is formed in the United Kingdom (it remains the oldest in the world).
- October – The last volcanic eruption of Mount Guntur in West Java occurs.
- October 12 – German inventors and industrialists Werner von Siemens and Johann Georg Halske found Siemens & Halske to develop the electrical telegraph.
- October 19 – Charlotte Brontë publishes Jane Eyre under the pen name of Currer Bell in England.
- October 31 – Theta Delta Chi is founded as a social fraternity at Union College, Schenectady, New York.
- November 3–29 – Sonderbund War: In Switzerland, General Guillaume-Henri Dufour's Federal Army defeats the Sonderbund (an alliance of seven Catholic cantons) in a civil war, with a total of only 86 deaths.
- November 4–8 – James Young Simpson discovers the anesthetic properties of chloroform and first uses it, successfully, on a patient, in an obstetric case in Edinburgh.
- November 10 – The first brew of Carlsberg beer is finished in Copenhagen.
- November 17 – The Battle of Um Swayya Spring takes place near a spring in Qatar, after a Bahraini force under Shaikh Ali bin Khalifa Deputy Ruler of Bahrain defeats the Al Binali tribe. The chief of the Al Binali, Isa bin Tureef, is slain in battle with over 70 fatalities from his side.
- December 14 – Emily Brontë and Anne Brontë publish Wuthering Heights and Agnes Grey, respectively, in a 3-volume set under the pen names of Ellis Bell and Acton Bell in England.
- December 21 – Emir Abdelkader surrenders to the French in Algeria.
- The Great Famine continues in Ireland.
- The North Carolina General Assembly incorporates the railroad town of Goldsborough, and the Wayne county seat is moved to the new town.
- Radley College, an English public school, is founded near Oxford.
- Welfare in Sweden takes its first step with the introduction of the 1847 års fattigvårdförordning.
- Cartier, a luxury brand in France, is founded.
- January 5 – Oku Yasukata, Japanese field marshal, leading figure in the early Imperial Japanese Army (d. 1930)
- January 7 – Caspar F. Goodrich, American admiral (d. 1925)
- January 24 – Radomir Putnik, Serbian field marshal (d. 1917)
- January 27 – Ella Maria Dietz Clymer, American actress and author (d. 1920)
- January 28 – Dorus Rijkers, Dutch naval hero (d. 1928)
- February 3 – Warington Baden-Powell, British admiralty lawyer (d. 1921)
- February 4 – Remus von Woyrsch, German field marshal (d. 1920)
- February 5 – João Maria Correia Ayres de Campos, 1st Count of Ameal, Portuguese politician and antiquarian (d. 1920)
- February 8 – Hugh Price Hughes, Methodist social reformer, first Superintendent of the West London Mission (d. 1902)
- February 11 – Thomas Alva Edison, American inventor (d. 1931)
- February 13 – Sir Robert McAlpine, Scottish builder (d. 1930)
- February 15 – Robert Fuchs, Austrian composer (d. 1927)
- February 16 – Philipp Scharwenka, Polish-German composer (d. 1917)
- February 17 – Otto Blehr, Norwegian attorney, Liberal Party politician, 7th Prime Minister of Norway (d. 1927)
- March 1 – Sir Thomas Brock, English sculptor (d. 1922)
- March 2
- March 3 – Alexander Graham Bell, Scottish-born American inventor (d. 1922)
- March 4 – Carl Josef Bayer, Austrian chemist (d. 1904)
- March 14 – Castro Alves, Brazilian poet (d. 1871)
- March 18 – William O'Connell Bradley, American politician from Kentucky (d. 1914)
- March 23 – Edmund Gurney, British psychologist (d. 1888)
- March 27
- April 2 – Charles Frederic Moberly Bell, British journalist, editor (d. 1911)
- April 10 – Joseph Pulitzer, Hungarian-born journalist, newspaper publisher (d. 1911)
- April 15 – Yehudah Aryeh Leib Alter, Polish Hasidic rabbi (d. 1905)
- April 27 – Emma Irene Åström, Finnish teacher, Finland's first female university graduate (d. 1934
- May 7 – Archibald Primrose, 5th Earl of Rosebery, Prime Minister of the United Kingdom (d. 1929)
- May 14 – Sir Frederick William Borden, Canadian politician (d. 1917)
- June 8
- June 10 – Gina Krog, Norwegian suffragist (d. 1916)
- June 11 – Dame Milicent Fawcett, British suffragist (d. 1929)
- June 16 – Luella Dowd Smith, American educator, author, and reformer (d. 1941)
- July 2 – Marcel Alexandre Bertrand, French geologist (d. 1907)
- July 9 – Wong Fei-hung, Chinese healer, revolutionary (d. 1925)
- July 19 – Alexander Meyrick Broadley, British historian (d. 1916)
- July 20
- July 25 – Paul Langerhans, German pathologist, biologist (d. 1888)
- August 3 – John Hamilton-Gordon, 1st Marquess of Aberdeen and Temair, Canadian politician, Governor General (d. 1934)
- August 5 – Andrey Selivanov, Russian general and politician (d. 1917)
- August 21 – Hale Johnson, American temperance movement leader (d. 1902)
- September 3 – Charles Stillman Sperry, American admiral (d. 1911)
- September 5
- September 17 – John I. Beggs, American businessman (d. 1925)
- September 22 – Enrique Almaraz y Santos, Spanish Catholic cardinal (d. 1922)
- September 23 – Anandamohan Bose, Indian politician, academic and social reformer (d. 1906)
- September 30 – Wilhelmina Drucker, Dutch feminist (d. 1925)
- October 1 – Annie Besant, English women's rights activist, writer and orator (d. 1933)
- October 2 – Paul von Hindenburg, German field marshal, President of Germany (d. 1934)
- October 3 – Lilian Whiting, American journalist, editor, and author (d. 1942)
- October 13
- October 14 – Wilgelm Vitgeft, Russian admiral (d. 1904)
- October 15 – Ralph Albert Blakelock, American romanticist painter (d. 1919)
- October 17 – Chiquinha Gonzaga, Brazilian composer (d. 1935)
- October 19 – Aurilla Furber, American author, editor, and activist (d. 1898)
- October 20 – Mifflin E. Bell, American architect (d. 1904)
- October 22 – Koos de la Rey, Boer general (d. 1914)
- October 30
- November 1 – Dame Emma Albani, Canadian operatic soprano (d. 1930)
- November 2 – Georges Sorel, French socialist philosopher (d. 1922)
- November 6 – Ugo Balzani, Italian historian (d. 1916)
- November 7 – Lotta Crabtree, American stage actress (d. 1924)
- November 8
- November 26 – Dagmar of Denmark, empress of Tsar Alexander III of Russia (d. 1928)
- November 30 – Afonso Pena, Brazilian president (d. 1909)
- December 1 – Agathe Backer-Grøndahl, Norwegian pianist, composer (d. 1907)
- December 7 – George Grossmith, English actor, comic writer (d. 1912)
- December 17
- December 18 – Augusta Holmès, French composer (d. 1903)
- December 29 – Alexis-Xyste Bernard, Canadian Catholic bishop (d. 1923)
- December 30 – John Peter Altgeld, American politician, 20th Governor of Illinois (d. 1902)
- Eunice Eloisae Gibbs Allyn, American correspondent, author, and songwriter (d. 1916)
- Clarissa Caldwell Lathrop, American social reformer and autobiographer (d. 1892)
- January 19 – Charles Bent, first Governor of New Mexico Territory (b. 1799) (assassinated)
- February 3 – Marie Duplessis, French courtesan (b. 1824)
- February 5 – Luis José de Orbegoso, Peruvian general and politician, 11th and 12th President of Peru (b. 1795)
- March 9 – Mary Anning, British paleontologist (b. 1799)
- April 21 – Barbara Spooner Wilberforce, wife of British abolitionist William Wilberforce (b. 1777)
- April 30 – Archduke Charles of Austria, Austrian general (b. 1771)
- May 14 – Fanny Mendelssohn, German composer, pianist (b. 1805)
- May 15 – Daniel O'Connell, Irish politician who promoted the Roman Catholic Relief Act 1829 (b. 1775)
- May 16 – Vicente Rocafuerte, 2nd President of Ecuador (b. 1783)
- May 29 – Emmanuel de Grouchy, Marquis de Grouchy, French marshal (b. 1766)
- May 31 – Abbasgulu Bakikhanov, Azerbaijani writer (b. 1794)
- June 11 – Sir John Franklin, British explorer (b. 1786)
- July 7 – Thomas Carpenter, American glassmaker (b. 1752)
- July 16 – Karl Friedrich Burdach, German physiologist (b. 1776)
- September 4 – František Vladislav Hek, Czech patriot (b. 1769)
- September 13 – Nicolas Oudinot, French marshal (b. 1767)
- October 3 – Charles Hatchett, English chemist (b. 1765)
- October 22
- November 4 – Felix Mendelssohn, German composer (b. 1809)
- December 14
- Unknown: Jeanne Geneviève Labrosse, French balloonist and parachutist (b. 1775)
- "The History of Birkenhead Park". Archived from the original on June 26, 2008. Retrieved September 13, 2007.
- "The Exmouth - a terrible tragedy on Islay". Isle of Islay. 2011. Retrieved July 13, 2012.
- "The Exmouth shipwreck off the Antrim Coast, Northern Ireland". My Secret Northern Ireland. Retrieved July 13, 2012.
- Marshall, John (1989). The Guinness Railway Book. Enfield: Guinness Books. ISBN 0-8511-2359-7. OCLC 24175552.
- First communicated to the Medico-Chirurgical Society of Edinburgh, November 10, and published in a pamphlet, Notice of a New Anæsthetic Agent, in Edinburgh, November 12.
- Gordon, H. Laing (2002). Sir James Young Simpson and Chloroform (1811–1870). Minerva Group, Inc. ISBN 978-1-4102-0291-8. Retrieved November 11, 2011.