Historical Events In August - 20
Sunday, 02 November 2025
0002 Venus-Jupiter in conjunction-Star of Bethlehem on this day in history. 

0535 On August - 20 mochta of Louth, disciple of St. Patrick 

0573 On August - 20 gregory of Tours selected bishop of Tours 

0636 On this day in history battle at Yarmuk: Moslems beat Byzantines [or August 15] 

0917 On this day in history 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 

0917 On this day in history battle at Anchialus: Bulgaria army counter attacks Byzantines 

0984 On August - 20 john XIV, [Petrus Canepanova], Italian Pope (983-84), dies 

1000 The foundation of the Hungarian state, Hungary is established as a Christian kingdom by Stephen I of Hungary on August - 20. 

1153 On August - 20 bernard[us] van Clairvaux, French saint, dies 

1191 On August - 20 crusader King Richard I kills 3,000 muslim prisoners in Akko 

1384 On August - 20 geert Great, [Gerardus Magnus], theologist (Getijdenboek), dies 

1391 Konrad von Wallenrode becomes the 24th Hochmeister of the Teutonic Order on this day in history. 

1517 Antoine Perrenot de Granvelle, cardinal/viceroy of Naples (1571-75) on August - 20. 

1526 Peter Opmeer, church historian/humanist (Historia Martyrum) on this day in history. 

1534 On this day in history turkish admiral Chaireddin"Barbarossa" occupies Tunis 

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 On this day in history humphrey Gilbert c1537-1583 sails to Cape Race Newfoundland to fish for cod and explore mainland; sends two ships back to England. 

1585 English queen Elizabeth I signs Treaty of Nonsuch: aid to Netherland on this day in history. 

1597 On August - 20 1st Dutch East India Company ships returned from Far East 

1604 Spanish garrison of Sluis surrenders to count Maurice on August - 20. 

1619 On August - 20 1st Black slaves brought by Dutch to colony of Jamestown Virginia 

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 this day in history thomas Corneille, French playwright 

1632 On August - 20 valentin de Boulogne, French painter, buried at 38 

1637 Cornelis Van Aerssen, Dutch governor/co-owner of Surinam on August - 20. 

1639 On this day in history martin Opitz, German poet/historian (Troerinnen), dies at 41 

1641 On this day in history britain & Scotland sign Treaty of Pacification 

1648 On August - 20 battle of Lens: French duke d'Enghien defeats Spaniards 

1648 Edward Herbert of Cherbury, English military/philosopher, dies at 65 on this day in history. 

1665 Bernardus Smijtegelt, vicar (Gekrookte Reed) on this day in history. 

1666 Alphonse d' Eve, composer on August - 20. 

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. 

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