Christian feast day: Agnes

Agnes of Rome is a virgin martyr, venerated as a saint in the Catholic Church, Oriental Orthodox Church and the Eastern Orthodox Church, as well as the Anglican Communion and Lutheran Churches. She is one of several virgin martyrs commemorated by name in the Canon of the Mass, and one of many Christians martyred during the reign of the Roman emperor Diocletian.

January 21 is the 21st day of the year in the Gregorian calendar; 344 days remain until the end of the year.