This Day in History
Today: May 1, 2026
305
Diocletian and Maximian retire from the office of Roman emperor.
880
The Nea Ekklesia is inaugurated in Constantinople, setting the model for all later cross-in-square Orthodox churches.
1169
Norman mercenaries land at Bannow Bay in Leinster, marking the beginning of the Norman invasion of Ireland.
1328
Wars of Scottish Independence end: By the Treaty of Edinburgh–Northampton, England recognises Scotland as an independent state.
1486
Christopher Columbus presents his plans discovering a western route to the Indies to the Spanish Queen Isabella I of Castile.[1]
1669
Henry Morgan's raid on Lake Maracaibo, the Spanish Armada de Barlovento is defeated by an English Privateer fleet led by Captain Henry Morgan.[2]
1707
The Act of Union joining England and Scotland to form the Kingdom of Great Britain takes effect.[3]
1753
Publication of Species Plantarum by Linnaeus, and the formal start date of plant taxonomy adopted by the International Code of Botanical Nomenclature.
1807
The Slave Trade Act 1807 takes effect, abolishing the slave trade within the British Empire.[4]
1820
Execution of the Cato Street Conspirators, who plotted to kill the British Cabinet and Prime Minister Lord Liverpool.[5]
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