Diocletian and Maximian retire from the office of Roman emperor.📜 INDIAN ARMY🌍 GLOBAL🗓️ 1 May 0305Roman emperor from 284 to 305
A synod in Carthage condemns Pelagianism.📜 CITIES🌍 GLOBAL🗓️ 1 May 04183rd–5th century church synods held in Africa
The Nea Ekklesia is inaugurated in Constantinople📜 HISTORICAL EVENTS🌍 GLOBAL🗓️ 1 May 0880Byzantine church in Constantinople (now Istanbul) from 880 to 1490
Norman mercenaries land at Bannow Bay in Leinster📜 HISTORICAL EVENTS🌍 GLOBAL🗓️ 1 May 1169European ethnic group
Wars of Scottish Independence end: By the Treaty of Edinburgh–Northampton📜 HISTORY🌍 GLOBAL🗓️ 1 May 1328War of national liberation between Scotland and England
Scottish Royal forces loyal to king James II defeat a rebell army of the Black Douglases in the battle of Arkinholm.📜 INDIAN ARMY🌍 UNITED KINGDOM🗓️ 1 May 1455Sovereign state in Europe (843–1707)
Christopher Columbus presents his plans discovering a western route to the Indies to the Spanish Queen Isabella I of Castile.📜 HISTORICAL EVENTS🌍 GLOBAL🗓️ 1 May 1486Italian navigator and explorer (1451–1506)
The Edict of Expulsion is officially proclaimed in Castile📜 HISTORICAL EVENTS🌍 SPAIN🗓️ 1 May 14921492 decree expelling Jews from Spain
Henry Morgan’s raid on Lake Maracaibo📜 WARS🌍 UNITED KINGDOM🗓️ 1 May 1669Military event in 1669 in Venezuela
The Act of Union joining England and Scotland to form the Kingdom of Great Britain takes effect.📜 HISTORICAL EVENTS🌍 UNITED KINGDOM🗓️ 1 May 1707Acts of Parliament creating the Kingdom of Great Britain
Publication of Species Plantarum by Linnaeus📜 HISTORICAL EVENTS🌍 UNITED STATES🗓️ 1 May 1753Swedish biologist and physician (1707–1778)
The Slave Trade Act 1807 takes effect📜 HISTORICAL EVENTS🌍 UNITED KINGDOM🗓️ 1 May 1807Act of the Parliament of the United Kingdom
Execution of the Cato Street Conspirators📜 HISTORICAL EVENTS🌍 UNITED KINGDOM🗓️ 1 May 18201820 planned assassination attempt on UK Government ministers
Hong Kong Police Force📜 HISTORICAL EVENTS🌍 GLOBAL🗓️ 1 May 1844Principal law enforcement agency of Hong Kong
The few remaining Mormons left in Nauvoo📜 HISTORICAL EVENTS🌍 GLOBAL🗓️ 1 May 1846Religious group; part of the Latter Day Saint movement
Queen Victoria opens The Great Exhibition at The Crystal Palace in London.📜 HISTORICAL EVENTS🌍 INDIA🗓️ 1 May 1851Queen of the United Kingdom from 1837 to 1901
American Civil War: The Battle of Chancellorsville between Robert E. Lee’s Confederate Army of Northern Virginia and the Union Army of the Potomac under Joseph Hooker begins.📜 POLITICS🌍 UNITED STATES🗓️ 1 May 18631861–1865 conflict in the United States
The Memphis Race Riots begin. Over three days📜 INDIAN ARMY🌍 UNITED STATES🗓️ 1 May 1866Massacre of the Black community of Memphis, Tennessee