In the annals of the traditional Dominican liturgical calendar, this feast may rank as one of the shortest lived. In the early 20th century, rather than celebrating the VI Sunday after the Epiphany yesterday, the Order would have celebrated the feast of St. Thomas Aquinas - Patron of Catholic Schools.
One year after his landmark engyclical Aeternis Patris on the philosophical and theological methods of St. Thomas Aquinas, Pope Leo XIII declared:
“We, for the glory of Almighty God and in honor of the Angelic Doctor, for the increase of the sciences, and for the common benefit of human society, declare by Our Supreme Authority , that St. Thomas Aquinas is Patron of Studies in Universities, Colleges, Lyceums, and Catholic Schools; and We desire that he be so held by all…” "Cum hoc sit", Brief of Leo XIII, August 4, 1880.
Beginning with the 1924 Breviarium iuxta ritum sacri ordinis praedicatorum, November 13 was the feast of St. Thomas Aquinas - Patron of Catholic Schools in the Dominican liturgical calendar. Fr. Bonniwell's "History of the Dominican Liturgy" gives no date for when exactly the Order adopted this feast.