The #Trivium (three) as an educational construct was structured as Grammar, Logic and Rhetoric . This was the primary schooling. The advanced education was the Quadrivium (four), a historical division of the liberal arts as follows:

Arithmetic: the study of numbers and their relationships, focusing on abstract quantity and mathematical principles.

Geometry: the study of shapes and spatial relationships, exploring the properties and measurements of physical objects.

Music: the study of harmony, rhythm, and melody, examining the mathematical and theoretical foundations of music.

Astronomy: the study of celestial bodies and their movements, exploring the mathematical and physical principles governing the universe

To summarize...the trivium gives one the tools necessary to understand and articulate. The quadrivium gives one an understanding of numbers (arithmetic), then numbers applied to space (geometry), then numbers applied to time (music). Finally, the integration and sense of scale (astronomy).

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