Q. 1. What is the difference between Feasts, Memorials And Solemnities in the liturgy?

A. 1. A Solemnity is the highest of three ranks of celebration in the liturgical calendar. Such consist of Easter, Christmas, All Saints Day, the Ascension, Corpus Christi, and other celebrations of events in our Lord’s life on earth and certain saints. While most solemnities are not days of obligation, they are like Sundays.

The Feasts, in the second rank, consists of the celebration of certain saints. Such includes the feast of the Archangels and the Apostles.

Memorials, the lowest rank in the liturgical calendar, consists of the celebration of most of the saints. If a memorial is obligatory, it is identifed with a capital M. Those must be observed.