Tisias

Corax was one of the founders of ancient Greek rhetoric. Some scholars contend that both founders are merely legendary personages, others that Corax and Tisias were the same person, described in one fragment as "Tisias, the Crow". And according to Aristotle, Empedocles was the actual founder of rhetoric, but this is also unlikely. It is believed that William Shakespeare derived the name Sycorax from Corax of Syracuse. Corax is said to have lived in Sicily, Magna Graecia, in the 5th century BC, when Thrasybulus, tyrant of Syracuse, was overthrown and a democracy formed.