Events on 21 May 61
See all →Year 293
Roman Emperors Diocletian and Maximian appoint Galerius as Caesar to Diocletian, beginning the period of four rulers known as the Tetrarchy.
Year 879
Pope John VIII gives blessings to Branimir of Croatia and to the Croatian people, considered to be international recognition of the Croatian state.
Year 1349
Dušan's Code, the constitution of the Serbian Empire, is enacted by Dušan the Mighty.
Year 1403
Henry III of Castile sends Ruy González de Clavijo as ambassador to Timur to discuss the possibility of an alliance between Timur and Castile against the Ottoman Empire.
Year 1554
Queen Mary I grants a royal charter to Derby School, as a grammar school for boys in Derby, England.
Year 1659
In the Concert of The Hague, the Dutch Republic, the Commonwealth of England and the Kingdom of France set out their views on how the Second Northern War should end.
Year 1660
The Battle of Long Sault concludes after five days in which French colonial militia, with their Huron and Algonquin allies, are defeated by the Iroquois Confederacy.
Public Holidays Around The World On This Day 2
Birthdays on 21 May 191
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Deaths on 21 May 96
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