930 in history

Died in 930

Jun 20 Hucbald a Frankish music theorist, composer, teacher, writer, hagiographer, and Benedictine monk. Deeply influenced by Boethius' De Institutione Musica, he wrote the first systematic work on western music theory, aiming at reconciling through many notated examples ancient Greek music theory and the contemporary practice of the more recent so-called 'Gregorian chant'
Oct 23 Emperor Daigo the 60th emperor of Japan, according to the traditional order of succession.