Editing April 7 (section)

===1601–1900===
*[[1724]] &ndash; Premiere performance of Bach's ''[[St John Passion structure|St John Passion]]'', [[Bach-Werke-Verzeichnis|BWV]]&nbsp;245, at [[St. Nicholas Church, Leipzig]].
*[[1767]] &ndash; End of [[Burmese–Siamese War (1765–1767)]].
*[[1788]] &ndash; [[List of early settlers of Marietta, Ohio|Settlers]] establish [[Marietta, Ohio]], the first permanent settlement created by [[Citizenship of the United States|U.S. citizens]] in the recently organized [[Northwest Territory]].
*[[1790]] &ndash; [[Russo-Turkish War (1787–1792)|Russo-Turkish war (1787–1792)]]: Greek privateer [[Lambros Katsonis]] loses three of his ships in the [[Battle of Andros (1790)|Battle of Andros]].<ref>{{cite web | url=https://www.nhmuseum.gr/en/departments/into-the-museum-s-collection/item/9463-thenavalbattleatthestraitsofandrosislandapril61790arsonofthegreekflagshipathensofthenorthoneofthemajoreventsduringtheexpeditionbylambroskatso | title="The naval battle at the straits of Andros island, April 6, 1790. Arson of the Greek flagship "Athens of the North"". One of the major events during the expedition by Lambros Katsonis against the Ottomans. Oil painting on canvas, by unknown, 19th century }}</ref>
*[[1795]] &ndash; The [[French First Republic]] adopts the [[kilogram]] and [[gram]] as its primary unit of mass.<ref>{{Cite web |date=2017-07-06 |title=Metrication timeline |url=https://ukma.org.uk/press/metrication-timeline/ |access-date=2022-08-16 |website=UK Metric Association |language=en}}</ref>
*[[1798]] &ndash; The [[Mississippi Territory]] is organized from disputed territory claimed by both the [[United States]] and the [[Spanish Empire]]. It is expanded in 1804 and again in 1812.
*[[1805]] &ndash; [[Lewis and Clark Expedition]]: The [[Corps of Discovery]] breaks camp among the [[Mandan]] tribe and resumes its journey West along the [[Missouri River]].
*[[1805]] &ndash; German composer [[Ludwig van Beethoven]] premieres his [[Symphony No. 3 (Beethoven)|Third Symphony]], at the [[Theater an der Wien]] in [[Vienna]].
*[[1824]] &ndash; The [[Mechanics' institute|Mechanics' Institution]] is established in [[Manchester]], England at the Bridgewater Arms hotel, as part of a national movement for the education of working men. The institute is the precursor to three Universities in the city: the [[University of Manchester]], [[UMIST]] and the [[Metropolitan University of Manchester]] (MMU).<ref>{{cite web|url=https://www.manchester.ac.uk/discover/bicentenary/|website=manchester.ac.uk|author=Anon|year=2024|title=Celebrating our bicentenary: 200 years of education and innovation|archiveurl=https://web.archive.org/web/20230815205524/https://www.manchester.ac.uk/discover/bicentenary/|archivedate=2023-08-15}}</ref><ref>{{cite web|url=https://www.manchester.ac.uk/discover/history-heritage/history/umist/|website=manchester.ac.uk|title=History of UMIST|author=Anon|year=2024|archiveurl=https://web.archive.org/web/20140924010004/https://www.manchester.ac.uk/discover/history-heritage/history/umist/|archivedate=2014-09-24}}</ref><ref>{{cite web|url=https://www.mmu.ac.uk/about-us/history|website=mmu.ac.uk|title=Our history and heritage|author=Anon|year=2024|archiveurl=https://web.archive.org/web/20190403145944/https://www2.mmu.ac.uk/about-us/history/|archivedate=2019-04-03}}</ref>
*[[1831]] &ndash; [[Pedro II of Brazil|Pedro II]] becomes Emperor of [[Empire of Brazil]].<ref>{{Britannica URL|title=Pedro II {{!}} emperor of Brazil |url=biography/Pedro-II}}</ref> 
*[[1862]] &ndash; [[American Civil War]]: The Union's [[Army of the Tennessee]] and the [[Army of the Ohio]] [[Battle of Shiloh|defeat]] the Confederate [[Army of Mississippi]] near [[Shiloh, Hardin County, Tennessee|Shiloh, Tennessee]].
*[[1868]] &ndash; [[Thomas D'Arcy McGee]], one of the Canadian [[Fathers of Confederation]], is assassinated by a [[Fenian]] activist.