Editing May 1 (section)

==Holidays and observances==
* Christian [[feast day]]:
** [[Aldebrandus]]<ref name="MRomanum"/>
** [[Amator]]<ref name="MRomanum"/>
** [[Andeolus]]<ref name="MRomanum">{{cite book |title=Martyrologium Romanum |date=2004 |url=https://archive.org/details/MartRom2004/page/263/mode/1up |access-date=29 April 2024 |language=la}}</ref>
** [[Aredius of Gap]]<ref name="MRomanum"/>
** [[Saint Asaph|Asaph]]<ref name="MRomanum"/>
** [[Augustin Schoeffler]], [[Jean-Louis Bonnard]] (part of [[Vietnamese Martyrs]])
** [[Benedict of Szkalka]]
** [[Bertha of Val d'Or]]<ref name="dunbar-117">Dunbar, Agnes B.C. (1901). ''A Dictionary of Saintly Women''. Volume 1. London: George Bell & Sons. pp. 117−118.</ref><ref name="encyclopedia">{{Cite book|title=Catholic Encyclopedia|publisher=Appleton|year=1907|location=New York|pages=519}}</ref>
** [[Saint Brioc|Brioc]]<ref name="MRomanum"/>
** [[James, son of Alphaeus|James the Less]] ([[Anglican Communion]])
** [[Jeremiah]]<ref name="MRomanum"/>
** [[Saint Joseph|Joseph the Worker]] ([[Roman Catholic]])<ref name="MRomanum"/>
** [[Julian of Bale]]<ref name="MRomanum"/>
** Blessed [[Klymentiy Sheptytsky]] ([[Ukrainian Greek Catholic Church]])
** [[Mafalda of Portugal]]<ref name="MRomanum"/>
** [[Saint Marcouf|Marcouf]]<ref name="MRomanum"/>
** [[Orientius]]<ref name="MRomanum"/>
** [[Peregrine Laziosi]]<ref name="MRomanum"/>
** [[Philip the Apostle]] ([[Anglican Communion]], [[Lutheran Church]])
** [[Richard Pampuri]]
** [[Seven Apostolic Men]]<ref name="MRomanum"/>
*** [[Caecilius of Elvira]]<ref name="MRomanum"/>
*** [[Ctesiphon of Vergium]]<ref name="MRomanum"/>
*** [[Euphrasius of Illiturgis]]<ref name="MRomanum"/>
*** [[Hesychius of Cazorla]]<ref name="MRomanum"/>
*** [[Indaletius]]<ref name="MRomanum"/>
*** [[Secundus of Abula]]<ref name="MRomanum"/>
*** [[Torquatus of Acci]]<ref name="MRomanum"/>
** [[Sigismund of Burgundy]]<ref name="MRomanum"/>
** [[Theodard]]<ref name="CatholicTheodard">{{cite web |title=St. Theodard - Saints & Angels |url=https://www.catholic.org/saints/saint.php?saint_id=2202 |website=Catholic Online |access-date=29 April 2024 |language=en}}</ref><ref name="MRomanum"/>
** [[Saint Ultan|Ultan]]
** [[May 1 (Eastern Orthodox liturgics)]]
* [[Armed Forces Day]] ([[Mauritania]])
* [[Constitution Day]] ([[Argentina]], [[Latvia]], [[Marshall Islands]])
* Commemoration of the states of [[Maharashtra]] and [[Gujarat]] following the foundation of [[Samyukta Maharashtra Samiti]] (India):
** [[Maharashtra Day]]
* [[International Sunflower Guerrilla Gardening Day]] 
* [[Lei Day]] ([[Hawaii]])
* [[International Workers' Day]] or [[Labour Day]] ([[International observance|International]]), and its related observances:
** [[Law Day (United States)]], formerly intended to counterbalance the celebration of [[Labour Day]]. (United States)
** [[Loyalty Day]], formerly intended to counterbalance the celebration of [[Labour Day]]. (United States)
* [[May Day]] (beginning of Summer) observances in the Northern hemisphere ''(see [[April 30]])'':
**[[Calan Mai]] ([[Wales]])
**[[Beltane]] ([[Gaels|Gaelic]])