the.com/quadrivium
medieval math camp: arithmetic, geometry, music, and astronomy, because numbers rule everything you touch.
means the four advanced liberal arts of classical and medieval education, studied after the trivium as the path to philosophical wisdom.
from latin for four roads, coined by boethius around 500 ad to bundle the pythagorean sciences that all boiled down to number: pure, static, moving, and applied.
literal meaningwhere four roads meet
music as mathharmony counted as numbers in time
came aftertrivium: grammar, logic, rhetoric first
pythagorean rootall four rest on number theory