The man who gave conic sections their glow-up. Apollonius of Perga (fl. 3rd century BCE) didn’t just study curves — he named them: ellipse, parabola, hyperbola. Nicknamed “The Great Geometer” for good reason, his work pushed Greek math into new dimensions and made a comeback in Renaissance astronomy. Kepler called; Apollonius had already answered. Equal parts rigor and elegance, his legacy is etched in every orbit and equation that dares to bend.