Historical Events In April - 23
Tuesday, 21 October 2025
0034 On this day in history christ, crucified, according to Isaac Newton
0303 On this day in history george, knight/saint/patron of England, beheaded
0725 Wihtred, King of Kent on this day in history.
0871 On this day in history ethelred I, king of Wessex/brother of Alfred the Great, dies
0990 Ekkehart II, [Palatinus], monk to St-Gallen/poet, dies on this day in history.
0997 Vojtech "Adalbert" of Prague, 2nd bishop of Prague/apostle, dies at 40 on April - 23.
1014 The Battle of Clontarf ends Danish rule in Ireland, but a Dane kills the Irish king Brian Boru, 87 on April - 23.
1014 King Brian Boru of Ireland beats Danes at Battle of Clontarf on this day in history.
1014 On this day in history brian Boru, king of Ireland, dies in battle at 87
1016 On this day in history aethelbred II "the Unready", king of England (979-1016), dies
1154 On this day in history damascus surrenders to sultan Nur ad-Din van Aleppo
1229 Ferdinand III of Castile conquers Cáceres on April - 23.
1343 On this day in history st. George's Night Uprising.
1348 On this day in history english order of knighthood founded
1348 On this day in history first English order of knighthood founded (Order of the Garter)
1348 1st English order of knighthood founded (Order of Garter) on this day in history.
1416 Blaise/Blasius of Parma, Ital astrologist/philosopher/algebra, dies on this day in history.
1464 On this day in history johanna van Valois, Queen of France
1484 On this day in history julius Caesar Scaliger, Italy, scholar (On the Subtlety of Things)
1500 Pedro Cabral lands & annexes Brazil (Terra da Vera Cruz) on April - 23.
1500 On this day in history alexander Alesius, [Aless/Alane], System theologist/physician
1501 Portuguese navigator Pedro Cabral & 6 ships return to Lisbon on April - 23.
1504 On April - 23 king Maximilian I routes troops to Bavaria
1564 The birth of William Shakespeare, English playwright on April - 23.
1597 On April - 23 william Shakespeare's The Merry Wives of Windsor is first performed, with Queen Elizabeth I of England in attendance.
1598 Maarten Harpertszoon Tromp, naval commander on April - 23.
1616 Netherlands buys De Briel/Vlissingen/Fort Rammekens from England on this day in history.
1616 On this day in history miguel de Cervantes Saavedra, Spanish writer (Don Quixote), dies at 69
1623 On April - 23 jan Adam Reincken, composer
1625 Maurice of Nassau, Prince of Orange, dies at 57 on April - 23.
1629 On this day in history john Commelin, director (Hortus Botanicus, Amsterdam)
1633 On April - 23 sweden & Protestant German monarchy form Union of Heilbronn
1635 On April - 23 oldest US public institution, Boston Latin School founded
1649 On April - 23 andreas Kneller, composer
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