As a preface, I am not sure who first derived this method and do not think we will ever know. For me this doesn’t matter, the content speaks louder than its creator.
Etymologically, the Latin word trivium means "the place where three roads meet" (tri + via); hence, the subjects of the trivium are the foundation for the quadrivium, the upper division of the medieval education...
The Trivium - Lost Method of Learning
Etymologically, the Latin word trivium means "the place where three roads meet" (tri + via); hence, the subjects of the trivium are the foundation for the quadrivium, the upper division of the medieval education...
The Trivium - Lost Method of Learning