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Concept
May 15
Summary
221 – Liu Bei, Chinese warlord, proclaims himself emperor of Shu Han, the successor of the Han dynasty.
392 – Emperor Valentinian II is assassinated while advancing into Gaul against the Frankish usurper Arbogast. He is found hanging in his residence at Vienne.
589 – King Authari marries Theodelinda, daughter of the Bavarian duke Garibald I. A Catholic, she has great influence among the Lombard nobility.
756 – Abd al-Rahman I, the founder of the Arab dynasty that ruled the greater part of Iberia for nearly three centuries, becomes emir of Cordova, Spain.
1252 – Pope Innocent IV issues the papal bull ad extirpanda, which authorizes, but also limits, the torture of heretics in the Medieval Inquisition.
1525 – Insurgent peasants led by Anabaptist pastor Thomas Müntzer were defeated at the Battle of Frankenhausen, ending the German Peasants' War in the Holy Roman Empire.
1536 – Anne Boleyn, Queen of England, stands trial in London on charges of treason, adultery and incest; she is condemned to death by a specially-selected jury.
1602 – Cape Cod is sighted by English navigator Bartholomew Gosnold.
1618 – Johannes Kepler confirms his previously rejected discovery of the third law of planetary motion (he first discovered it on March 8 but soon rejected the idea after some initial calculations were made).
1648 – The Peace of Münster is ratified, by which Spain acknowledges Dutch sovereignty.
1791 – French Revolution: Maximilien Robespierre proposes the Self-denying Ordinance.
1817 – Opening of the first private mental health hospital in the United States, the Asylum for the Relief of Persons Deprived of the Use of Their Reason (now Friends Hospital, Philadelphia, Pennsylvania).
1836 – Francis Baily observes "Baily's beads" during an annular eclipse.
1849 – The Sicilian revolution of 1848 is finally extinguished.
1850 – The Arana–Southern Treaty is ratified, ending "the existing differences" between Great Britain and Argentina.
1851 – The first Australian gold rush is proclaimed, although the discovery had been made three months earlier.
Official source
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