See also:

• Science: Math: Geometry  (498)
• Society: Philosophy: History of Philosophy: Ancient: Sophism  (4)
• Society: Philosophy: Philosophers: S: Socrates  (21)

• Hippias - Wikipedia entry on this ancient polymath, including some material from the 1911 Britannica.
• Hippias - Brief article on this early Sophist, from the Internet Encyclopedia of Philosophy.
• Hippias of Elis - Concise scholarly biography of this discoverer of the quadratrix, from the MacTutor History of Mathematics.
• Hippias's Quadratrix - Some brief notes on Hippias' attempt to square the circle using this curve, "a pictorial representation of the irrationality of pi."