Editing 1843 (section)

=== July–September ===
[[File:Ss Great Britain.jpg|thumb|200px|right| [[July 19]]: {{SS|Great Britain}} launch]]
* [[July]] – [[Margaret Fuller]]'s "The Great Lawsuit. Man versus Men. Woman versus Women" appears in ''The Dial'' magazine in the United States.
* [[July 12]] – [[Origin of Latter Day Saint polygamy]]: [[Joseph Smith]], founder of the [[Latter Day Saint movement]] in the United States, is purported to receive a revelation recommending [[Mormonism and polygamy|polygamy]]. 
* [[July 19]] – [[Isambard Kingdom Brunel]]'s {{SS|Great Britain}} is launched from [[Bristol]]; it will be the first iron-hulled, propeller-driven ship to cross the Atlantic Ocean.<ref>{{cite news|title=Royal Visit|work=The Bristol Mirror|pages=1–2|date=20 July 1843}}</ref>
* [[July 25]] – Père Antoine Désiré Mégret, a Capuchin missionary, purchases the land that will become [[Abbeville, Louisiana]] for $900, a town founded by descendants of [[Acadians]] from [[Nova Scotia]].
* [[August 1]] – [[Postage stamps and postal history of Brazil|Brazil]] becomes the second country, after Great Britain, to issue nationally valid [[postage stamp]]s, with the release of its ''[[Bull's Eye (postage stamp)|Bull's Eye]]'' series.
* [[August 19]] – Edgar Allan Poe's short story "[[The Black Cat (short story)|The Black Cat]]" is first published in ''The Saturday Evening Post''.
[[File:Kopenhaga tivoli jan2004 ubt.jpeg|thumb|220px| [[August 15]]: The [[Tivoli Gardens]] open in Denmark.]]
* [[August 15]] – [[Tivoli Gardens]], one of the oldest [[amusement park]]s in the world still intact, opens in [[Copenhagen]], Denmark.
* [[September]] – [[Ada Lovelace]] translates and expands [[Luigi Federico Menabrea|Menabrea]]'s notes on [[Charles Babbage]]'s [[Analytical Engine]], including an [[algorithm]] for calculating a sequence of [[Bernoulli numbers]], regarded as the world's first [[computer program]].<ref>{{cite journal|first1=John|last1=Fuegi|first2=Jo|last2=Francis|title=Lovelace & Babbage and the creation of the 1843 'notes'|journal=[[IEEE Annals of the History of Computing]]|volume=25|issue=4|pages=16–26|doi=10.1109/MAHC.2003.1253887|date=October–December 2003}}</ref><ref>{{cite web|url=http://cs-www.cs.yale.edu/homes/tap/Files/ada-bio.html|title=Ada Byron, Lady Lovelace|access-date=2010-07-11|archive-url= https://web.archive.org/web/20100721013509/http://cs-www.cs.yale.edu/homes/tap/Files/ada-bio.html|archive-date=July 21, 2010|url-status=live}}</ref><ref>{{cite journal|last=Menabrea|first=L. F.|author-link=Luigi Federico Menabrea|year=1843|title=Sketch of the Analytical Engine Invented by Charles Babbage|journal=[[Scientific Memoirs]]|volume=3|url=http://www.fourmilab.ch/babbage/sketch.html|access-date=2010-10-01|archive-url=https://web.archive.org/web/20100913042032/http://www.fourmilab.ch/babbage/sketch.html |archive-date=September 13, 2010|url-status=live}}</ref>
* [[September 2]] – ''[[The Economist]]'' newspaper is first published in London (preliminary issue dated ''August'').
* [[September 4]] – Emperor Dom [[Pedro II of Brazil]] marries Dona [[Teresa Cristina of the Two Sicilies]], in a state ceremony in [[Rio de Janeiro Cathedral]].
* [[September 15]] (Sept. 3, O.S.) – A [[3 September 1843 Revolution|Popular uprising]] in [[Athens]], Greece, including citizens and military captains, demands from [[Otto of Greece|King Otto]] a liberal [[Constitution]] from the state, which has been governed since independence ([[1830]]) by various domestic and foreign business interests.
*[[September 21]] – The crew of [[Chilean schooner Ancud (1843)|schooner ''Ancud'']], including [[John Williams Wilson]], [[Chilean colonization of the Strait of Magellan|takes possession]] of the [[Strait of Magellan]] on behalf of the Chilean government.<ref>{{Cite web |url=https://www.defensa.cl/noticias/a-178-anos-de-la-toma-de-posesion-del-estrecho-de-magallanes-ministro-prokurica-resalta-a-los-unifor/ |title=A 178 años de la Toma de Posesión del Estrecho de Magallanes, ministro Prokurica resalta a los uniformados que hacen Patria en lugares apartados |date=2021-09-22 |access-date=2022-11-10 |website=Ministerio de Defensa Nacional |language=Spanish}}</ref><ref>{{Cite book |title=A history of the Chilean boundaries |last=Talbott |first=Robert D.|chapter=The Strait of Magellan |publisher=The Iowa State University Press |year=1974 |isbn=0-8138-0305-5 |edition=A Replica |location=|pages=82}}</ref>