Hermannus Contractus

Hermannus Contractus (also called Hermannus Augiensis, Hermann of Reichenau) (1013 July 18 – 1054 September 24) was an 11th century scholar, composer, and music theorist. Hermannus was a son of the duke of Altshausen. He was crippled by a paralytic disease from early childhood. He spent most of his life in the abbey of Reichenau, an island on Lake Constance. Hermannus contributed to all four arts of the quadrivium. He was renowned as a musical composer (among his surviving works are officia for St. Afra and St. Wolfgang). He also wrote a treatise on the science of music, several works on geometry and arithmetics and astronomical treatises (including instructions for the construction of an astrolabe, at the time a very novel device in Christian Europe). As a historian, he wrote a detailed chronicle from the birth of Christ to his own present day, for the first time compiling the events of the 1st millennium AD scattered in various chronicles in a single work, ordering them after the reckoning of the Christian era. He was essentially beatified in 1863.

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1013: Events...

July 18: July 18 is the 199th day (200th in leap years) of the year in the Gregorian Calendar, with 166 days remaining....

September 24: September 24 is the 267th day of the year (268th in leap years). There are 98 days remaining....