Editing May 1 (section)

===1601–1900===
*[[1669]] &ndash; [[Henry Morgan's raid on Lake Maracaibo]], the Spanish [[Armada de Barlovento]] is defeated by an English Privateer fleet led by Captain [[Henry Morgan]].<ref>{{cite book |last1=Roberts |first1=Walter Adolphe |author1-link=Walter Adolphe Roberts |title=Sir Henry Morgan, Buccaneer and Governor |date=1933 |publisher=Covici, Friede |page=156 |url=https://books.google.com/books?id=YKlnAAAAMAAJ}}</ref>
*[[1707]] &ndash; The [[Act of Union 1707|Act of Union]] joining England and Scotland to form the [[Kingdom of Great Britain]] takes effect.<ref>{{cite web |title=The Act of Union between England and Scotland |url=https://www.historic-uk.com/HistoryUK/HistoryofBritain/The-Act-of-Union/ |website=Historic UK |access-date=8 May 2021}}</ref>
*[[1753]] &ndash; Publication of ''Species Plantarum'' by [[Carl Linnaeus|Linnaeus]], and the formal start date of [[plant taxonomy]] adopted by the [[International Code of Botanical Nomenclature]].
*[[1807]] &ndash; The [[Slave Trade Act 1807]] takes effect, abolishing the slave trade within the British Empire.<ref>[https://www.pdavis.nl/Legis_06.htm An Act for the Abolition of the Slave Trade]</ref>
*[[1820]] &ndash; Execution of the [[Cato Street Conspiracy|Cato Street Conspirators]], who plotted to kill the [[United Kingdom|British]] [[Cabinet of the United Kingdom|Cabinet]] and [[Prime Minister of the United Kingdom|Prime Minister]] [[Robert Jenkinson, 2nd Earl of Liverpool|Lord Liverpool]].<ref>{{cite book|last=Douglass|first=Paul|title=Lady Caroline Lamb: A Biography|location=New York|publisher=Palgrave Macmillan|date=2004|isbn=978-1-4039-6605-6|url=https://archive.org/details/ladycarolinelamb00doug_0|url-access=registration|page=[https://archive.org/details/ladycarolinelamb00doug_0/page/223 223]}}</ref>
*[[1840]] &ndash; The [[Penny Black]], the first official adhesive [[postage stamp]], is issued in the [[United Kingdom]].
*[[1844]] &ndash; [[Hong Kong Police Force]], the world's second modern [[Police|police force]] and Asia's first, is established.
*[[1846]] &ndash; The few remaining [[Mormons]] left in [[Nauvoo, Illinois]], formally dedicate the [[Nauvoo Temple]].
*[[1851]] &ndash; [[Queen Victoria]] opens [[The Great Exhibition]] at [[The Crystal Palace]] in London.
*[[1863]] &ndash; [[American Civil War]]: The [[Battle of Chancellorsville]] between [[Robert E. Lee]]'s [[Confederate States of America|Confederate]] [[Army of Northern Virginia]] and the [[Union (American Civil War)|Union]] [[Army of the Potomac]] under [[Joseph Hooker]] begins.<ref>{{cite book|last=Tucker|first=Spencer C.|chapter=Chancellorsville, Battle of|title=American Civil War: The Definitive Encyclopedia and Document Collection|editor-last1=Tucker|editor-first1=Spencer C.|editor-last2=Arnold|editor-first2=James R.|editor-last3=Wiener|editor-first3=Roberta|location=Santa Barbara, Calif.|publisher=ABC-CLIO|date=2013|isbn=978-1-85109-677-0|url=https://books.google.com/books?id=9dvYAQAAQBAJ|pages=341–343}}</ref>
*1863     &ndash; American Civil War: During the [[Vicksburg campaign]], Union forces under [[Ulysses S. Grant]] win the [[Battle of Port Gibson]] and establish a firm presence on the east side of the [[Mississippi River]].<ref>{{cite web|title=Battle of Port Gibson (May 1, 1863)|url=https://www.nps.gov/vick/learn/historyculture/battleportgibson.htm|website=NPS.gov|publisher=National Park Service|date=February 15, 2018|access-date=May 17, 2024}}</ref>
*[[1865]] &ndash; The [[Empire of Brazil]], [[Argentina]], and [[Uruguay]] sign the [[Treaty of the Triple Alliance]].
*[[1866]] &ndash; The [[Memphis riots of 1866|Memphis Race Riots]] begin. Over three days, 46 blacks and two whites were killed. Reports of the atrocities influenced passage of the [[Fourteenth Amendment to the United States Constitution]].<ref>{{cite book|last=Dattel|first=Eugene R.|title=Cotton and Race in the Making of America: The Human Costs of Economic Power|location=Lanham, Md.|publisher=Ivan R. Dee|date=2011|isbn=978-1-56663-968-2|url=https://books.google.com/books?id=VllSQthtskkC|pages=250–252}}</ref>
*[[1885]] &ndash; The original [[Chicago Board of Trade Building]] opens for business.
*[[1886]] &ndash; Rallies are held throughout the United States demanding the eight-hour work day, culminating in the [[Haymarket affair]] in [[Chicago]], in commemoration of which May 1 is celebrated as [[International Workers' Day]] in many countries.
*[[1894]] &ndash; [[Coxey's Army]], the first significant American [[Demonstration (protest)|protest march]], arrives in [[Washington, D.C.]]<ref>{{cite book|last=Barber|first=Lucy G.|chapter=Coxey's Army|title=Encyclopedia of U.S. Labor and Working-Class History. Volume 1: A—F|editor-last=Arneson|editor-first=Eric|location=New York|publisher=Routledge|date=2007|isbn=978-0-415-96826-3|url=https://books.google.com/books?id=zEWsZ81Bd3YC|pages=326–328}}</ref>
*[[1896]] &ndash; [[Naser al-Din Shah Qajar|Naser al-Din]], [[Qajar dynasty|Shah of Iran]], is assassinated in [[Shah Abdol-Azim Shrine]] by [[Mirza Reza Kermani]], a follower of [[Jamal al-Din al-Afghani]].<ref>{{citation|title=Pivot of the Universe: Nasir Al-Din Shah Qajar and the Iranian Monarchy, 1831-1896|first=Abbas|last=Amanat|publisher=I.B.Tauris|year=1997|isbn=9781860640971|series=Comparative studies on Muslim societies|page=440}}</ref>
*[[1898]] &ndash; [[Spanish–American War]]: [[Battle of Manila Bay]]: The [[Asiatic Squadron]] of the [[United States Navy]] destroys the [[Pacific Squadron]] of the [[Spanish Navy]] after a seven-hour battle. Spain loses all seven of its ships, and 381 Spanish sailors die. There are no American vessel losses or combat deaths.<ref>{{cite book|last=Symonds|first=Craig L.|title=Decision at Sea: Five Naval Battles That Shaped American History|location=New York|publisher=Oxford University Press|date=2005|isbn=978-0-19-517145-7|url=https://archive.org/details/decisionatseafiv00symo|url-access=registration|pages=[https://archive.org/details/decisionatseafiv00symo/page/143 143]–149|postscript=none}}; {{cite book|last=Simmons|first=Edwin H.|title=The United States Marines: A History|url=https://archive.org/details/unitedstatesmari0000simm_r8b9|url-access=registration|location=Annapolis, Md.|publisher=Naval Institute Press|date=2003|isbn=978-1-59114-790-9|page=[https://archive.org/details/unitedstatesmari0000simm_r8b9/page/69 69]}}</ref>
*[[1900]] &ndash; The [[Scofield Mine disaster]] kills over 200 men in [[Scofield, Utah]] in what is to date the fifth-worst [[mining accident]] in United States history.