Seven Liberal Arts of Classical Study

In medieval universities, the trivium comprised the three subjects that were taught first: grammar, logic, and rhetoric. The word is a Latin term meaning "the three ways" or "the three roads" forming the foundation of a medieval liberal arts education. This study was preparatory for the quadrivium, which consists of geometry, arithmetic, astronomy, and music. Combining the trivium and quadrivium results in the seven liberal arts of classical study.

http://en.wikipedia.org/wiki/Trivium