Major Events May 28 Severinus begins his reign as Catholic Pope (elected in 638) Jun 6 Arab Muslim army sent by Caliph Omar begins siege of Heliopolis, city succumbs mid to late July, paving way for Muslim conquest of Byzantine Egypt Dec 24 John IV begins his reign as Catholic Pope Who Died in 640 AD Mar 2 Bilal ibn Rabah, Arabic companion of prophet Muhammad, first mu'azzin in history, (b. 580) Jul 18 Arnulf, bishop of Metz (614-640)/politician, dies at about 58 Aug 2 Severinus, Italian Pope (640), dies Nov 27 Saint Acharius of Noyon, French bishop of Noyon–Tournai, dies of natural causes 639 AD History by Year 641 AD Medieval Popes Gregory I Gregory XIII Julius II Julius III Leo X Pius V
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V