Music 1010 Timeline By jackmandakota Period: 300 to Nov 7, 1500 Medieval Era 330 Founding of Constantinople 476 Death of Romulus Agustus 590 Reign of Pope Gregory I Nov 8, 850 First examples of pitcha nd rhythm Nov 8, 991 Life of Guido d'Arezzo LIfe of Guido was from 991AD to 1033AD. Nov 8, 1098 Life of Hildegard of Bingen Life of Bingen was from 1098AD to 1179AD. Nov 8, 1150 Life of Leonin LIfe of Leonin was about 1150AD to 1201AD. Nov 8, 1180 Life of Perotin Perotin was alive about 1180 to 1377. Nov 8, 1300 Life of Guillsume de Machaut Machaut was about 1300 to 1377.