Editing 1829 (section)

=== April–June ===
* [[April 1]] – [[Vicente Guerrero]] becomes president of [[First Mexican Republic|Mexico]].
* [[April 4]] – The Mexican city of [[Cuautla, Morelos]], is founded.
* [[April 13]] – The [[Roman Catholic Relief Act 1829|Catholic Relief Act]] is passed by the [[Parliament of the United Kingdom]], granting a substantial measure of [[Catholic emancipation]] in Britain and [[History of Ireland (1801–1923)#Catholic Emancipation|Ireland]].<ref name="Pocket On This Day">{{cite book|title=Penguin Pocket On This Day|publisher=Penguin Reference Library|isbn=0-14-102715-0|year=2006}}</ref>
* [[April 21]]– Popular German conductor [[Felix Mendelssohn]] begins his first of 10 visits to Britain, touring the island until November 28. This includes the first London performance of his [[concert overture]] to ''[[A Midsummer Night's Dream (Mendelssohn)|A Midsummer Night's Dream]]'', and his trip to [[Fingal's Cave]].<ref>[https://reubenvincent.duetpartner.com/mendelssohn-in-north-wales Mendelssohn: First of Ten Visits to Britain, 21st April – 28th November, 1829]</ref><ref>{{cite journal|first=George|last=Grove|author-link=George Grove|title=Mendelssohn's Scotch Symphony|jstor=904111|journal=[[The Musical Times]]|volume=45|issue=740|date=October 1, 1904|page=644|doi=10.2307/904111|url=https://zenodo.org/record/2346693}}</ref>
* [[May 6]] – The patent for an instrument called the [[accordion]] is applied for by Cyrill Demian (officially approved on May 23).<ref>{{cite web |url=http://www.ksanti.net/free-reed/history/demian.html |title=The Classical Free-Reed, Inc. Demian's Accordion Patent |website=www.ksanti.net |access-date=13 January 2022 |archive-url=https://web.archive.org/web/20090619162610/http://www.ksanti.net/free-reed/history/demian.html |archive-date=19 June 2009 |url-status=dead}}</ref>
* [[May 15]] – [[Joseph Smith]] claims to [[Priesthood (Latter Day Saints)#Restoration of the Aaronic Priesthood|have received the Aaronic Priesthood]] from John the Baptist.
* [[June 1]] – ''[[The Philadelphia Inquirer]]'' is founded in the U.S. as ''The Pennsylvania Inquirer''.
* [[June 3]] – The [[Swan River Colony]] (later to become the cities of [[Perth]] and [[Fremantle]]) is founded in Western Australia. This secures the western ''third'' of the Australian landmass for the British.
* [[June 5]] – {{HMS|Pickle}} captures the [[History of slavery|armed slave ship]] ''Voladora'' off the coast of [[Cuba]].
* [[June 10]] – The [[Oxford University Boat Club]] wins the first inter-university [[The Boat Race|Boat Race]],<ref name="Pocket On This Day"/> rowed at [[Henley-on-Thames]].<ref>{{cite web|url=http://theboatrace.org/origins|title=Foundations of The Boat Race|work=The Xchanging Boat Race|publisher=Theboatrace.org|access-date=March 29, 2012}}</ref>
* [[June 19]] – [[Robert Peel]] establishes the [[Metropolitan Police Service]] in London, the first modern police force. The first officers, known by the nickname "bobbies", go on patrol on September 29.<ref name="Pocket On This Day"/>