Hildegard of Bingen, German abbess and polymath (born 1098)

Hildegard of Bingen OSB, also known as the Sibyl of the Rhine, was a German Benedictine abbess and polymath active as a writer, composer, philosopher, mystic, visionary, and as a medical writer and practitioner during the High Middle Ages. She is one of the best-known composers of sacred monophony, as well as the most recorded in modern history. She has been considered by a number of scholars to be the founder of scientific natural history in Germany.

September 17 is the 260th day of the year in the Gregorian calendar; 105 days remain until the end of the year.