Historical Events In August - 20
Thursday, 18 September 2025
0002 Venus-Jupiter in conjunction-Star of Bethlehem on this day in history.
0535 Mochta of Louth, disciple of St. Patrick on this day in history.
0573 On August - 20 gregory of Tours selected bishop of Tours
0636 On August - 20 battle at Yarmuk: Moslems beat Byzantines [or August 15]
0917 The Bulgarian czar Symeon overruns Thrace in violation of a 913 agreement with Constantinople The Byzantines launch a counterattack but are routed August 20 at Anchialus Symeon gains control of the Balkans on August - 20.
0917 Battle at Anchialus: Bulgaria army counter attacks Byzantines on August - 20.
0984 On August - 20 john XIV, [Petrus Canepanova], Italian Pope (983-84), dies
1000 On this day in history the foundation of the Hungarian state, Hungary is established as a Christian kingdom by Stephen I of Hungary.
1153 Bernard[us] van Clairvaux, French saint, dies on this day in history.
1191 On this day in history crusader King Richard I kills 3,000 muslim prisoners in Akko
1384 Geert Great, [Gerardus Magnus], theologist (Getijdenboek), dies on this day in history.
1391 Konrad von Wallenrode becomes the 24th Hochmeister of the Teutonic Order on this day in history.
1517 On August - 20 antoine Perrenot de Granvelle, cardinal/viceroy of Naples (1571-75)
1526 Peter Opmeer, church historian/humanist (Historia Martyrum) on August - 20.
1534 Turkish admiral Chaireddin"Barbarossa" occupies Tunis on August - 20.
1538 On August - 20 aefgen Listinck, Dutch anabaptist, burned at stake
1561 On August - 20 jacopo Peri, composer
1566 Iconoclasm reaches Antwerp Belgium on August - 20.
1583 Humphrey Gilbert c1537-1583 sails to Cape Race Newfoundland to fish for cod and explore mainland; sends two ships back to England on this day in history.
1585 On August - 20 english queen Elizabeth I signs Treaty of Nonsuch: aid to Netherland
1597 1st Dutch East India Company ships returned from Far East on this day in history.
1604 Spanish garrison of Sluis surrenders to count Maurice on this day in history.
1619 1st Black slaves brought by Dutch to colony of Jamestown Virginia on August - 20.
1620 On August - 20 hudson's Bay Company employee Henry Kelsey sees buffalo on the Prairies, southwest of The Pas; the first white man to describe them.
1625 On August - 20 thomas Corneille, French playwright
1632 On this day in history valentin de Boulogne, French painter, buried at 38
1637 On August - 20 cornelis Van Aerssen, Dutch governor/co-owner of Surinam
1639 Martin Opitz, German poet/historian (Troerinnen), dies at 41 on August - 20.
1641 On August - 20 britain & Scotland sign Treaty of Pacification
1648 On this day in history battle of Lens: French duke d'Enghien defeats Spaniards
1648 On this day in history edward Herbert of Cherbury, English military/philosopher, dies at 65
1665 Bernardus Smijtegelt, vicar (Gekrookte Reed) on August - 20.
1666 On this day in history alphonse d' Eve, composer
1672 On this day in history former Grand Pensionary Johan de Witt and his brother Cornelis are brutally murdered by an angry mob in The Hague.