Editing 1836 (section)

=== April–June ===
* [[April 20]] – The [[Wisconsin Territory]] is created; the first capital is [[Belmont, Wisconsin|Belmont]].
* [[April 21]] – [[Texas Revolution]] – [[Battle of San Jacinto]]: Mexican forces under General [[Antonio López de Santa Anna]] are defeated at [[San Jacinto County, Texas|San Jacinto]], [[Texas]].
* [[April 22]] – [[Texas Revolution]]: Forces under [[Republic of Texas|Texas]] General [[Sam Houston]] capture Mexican General [[Antonio López de Santa Anna]].<ref name=Sproat>{{cite web |last1=Sproat |first1=Leslie |title=Capture site of Santa Anna |url=https://easttexashistory.org/items/show/142 |website=East Texas History |publisher=Leslie Sproat |access-date=28 November 2023}}</ref>
* [[May 4]] – The [[Ancient Order of Hibernians]], an [[Irish Catholic]] [[fraternal organization]], is founded in [[New York City]].
* [[May 7]] – The settlement of [[Mayagüez, Puerto Rico]] is elevated to the royal status of [[villa (chartered town)|villa]], by the government of Spain.
* [[May 14]] – [[Texas Revolution]]: The [[Treaties of Velasco]] are signed, between Mexican General [[Antonio López de Santa Anna]] and the [[Republic of Texas]]. In exchange for his freedom and the guarantee of free passage back to Mexico, General Santa Anna gives his recognition to the independence of Texas. The Mexican government refuses to ratify the treaties.<ref name=Sproat/>
[[File:Sam Houston at San Jacinto.jpg|thumb|[[April 21]]: [[Battle of San Jacinto]]]]
* [[May 15]] – During an [[List of solar eclipses in the 19th century#Eclipses|eclipse of the Sun]], English astronomer [[Francis Baily]] observes the phenomenon named after him as [[Baily's beads]].
* [[May 19]] – [[Fort Parker massacre]]: Among those captured by [[Native Americans in the United States|Native Americans]] is 9-year-old [[Cynthia Ann Parker]]. She later gives birth to a son named [[Quanah Parker|Quanah]], who becomes the last [[tribal chief|chief]] of the [[Comanche]].
* [[June 15]] – [[Arkansas]] is admitted into as the 25th state of the United States of America.