* Holy Days of Obligation: In addition to Sundays, there were a number of other holy days of obligation, including Christmas, Easter, Ascension Day, Pentecost, Corpus Christi, and the Assumption of Mary.
* Saints' Days: Saints' days were also considered holy days, and many people would attend Mass or go on pilgrimage to the shrine of the saint being celebrated.
* Rogation Days: Rogation Days were three days of prayer and fasting that were held before Ascension Day.
* Ember Days: Ember Days were four days of fasting and prayer that were held at the beginning of each season.
* Lent: Lent was a 40-day period of fasting and prayer that preceded Easter.
* Holy Week: Holy Week was the week leading up to Easter, and it was considered to be the most important week of the year.