The term "Quadrivium" refers to a classical educational framework that consists of four subjects: Arithmetic, Geometry, Music, and Astronomy. These disciplines were considered essential for a well-rounded education in the medieval period, forming the basis for higher learning. The Quadrivium follows the Trivium, which includes Grammar, Logic, and Rhetoric, together creating a comprehensive curriculum. Each subject in the Quadrivium builds upon the previous one, emphasizing the interconnectedness of knowledge. Arithmetic deals with numbers, while Geometry focuses on shapes and spatial relationships. Music explores mathematical relationships in sound, and Astronomy applies these principles to the study of celestial bodies.