Hippias of elis biography
Elis wikipedia
Hippias was a Greek contemporary of Socrates whose only contribution to mathematics seems to be the quadratrix - a curve he may have used for squaring the circle and trisecting angles.
Hippias and hipparchus
Hippias of Elis was a renowned Greek philosopher, sophist, and mathematician who lived during the 5th century BCE, a contemporary of Socrates.
Coroebus of elis
Hippias of Elis, the Greek Sophist and polymath, was probably born before BCE. The date of his death is not known, but Plato speaks of him as one of the leading Sophists at the time of .
Olympiade wikipedia
Hippias of Elis (/ˈhɪpiəs/; Greek: Ἱππίας ὁ Ἠλεῖος; late 5th century BC) was a Greek sophist, and a contemporary of Socrates.