May 9
date

May 9 is the 129th day of the year (130th in leap years) in the Gregorian calendar; 236 days remain until the end of the year.
Events
Pre-1600
328 – Athanasius is elected Patriarch of Alexandria.
1009 – Lombard Revolt: Lombard forces led by Melus revolt in Bari against the Byzantine Catepanate of Italy.
1310 – Nephon, Bishop of Cyzicus, is consecrated as Patriarch of Constantinople.
1386 – England and Portugal formally ratify their alliance with the signing of the Treaty of Windsor, making it the oldest diplomatic alliance in the world which is still in force.
1450 – Timurid monarch 'Abd al-Latif is assassinated.
1502 – Christopher Columbus sets off from Cádiz for his fourth voyage.
1540 – Hernando de Alarcón sets sail on an expedition to the Gulf of California.
1601–1900
1645 – Scottish Royalist forces under Lord Montrose defeat Covenanter forces under John Urry.
1662 – The figure who later became Mr.
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This entry incorporates text from “May 9” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.