Trivium

The trivium is the lower division of the seven liberal arts and comprises grammar, logic, and rhetoric.

[1] The trivium is implicit in De nuptiis Philologiae et Mercurii ("On the Marriage of Philology and Mercury") by Martianus Capella, but the term was not used until the Carolingian Renaissance, when it was coined in imitation of the earlier quadrivium.

[3]: 12–23  Contemporary iterations have taken various forms, including those found in certain British and American universities (some being part of the Classical education movement) and at the independent Oundle School in the United Kingdom.

Educationally, the trivium and the quadrivium imparted to the student the seven liberal arts of classical antiquity.

For the medieval student, the trivium was the curricular beginning of the acquisition of the seven liberal arts; as such, it was the principal undergraduate course of study.

Allegory of Grammar and Logic/Dialectic. Perugia, Fontana Maggiore.
Allegory of Grammar. Priscian on the left teaches Latin grammar to his students on the right. Relief by Luca della Robbia . Florence, Museo dell'Opera del Duomo.