Gregorian
Gregorian stands for
- Gregorian chant , a liturgical chant of the Roman Catholic Church named after Pope Gregory I.
- Gregorian calendar , named after Pope Gregory XIII. named reformed solar calendar
- Gregorian reforms , the church reform movement of the 11th and 12th centuries named after Pope Gregory VII
- Gregorian semiology , the doctrine of the neumen signs for the interpretation of Gregorian chant
See also: