Antiphon, an Athenian orator, son of So-philus the sophist, born at Rhamnus in Attica about 480 B. C, died in 4ll. He taught rhetoric at Athens, composed orations for others, was the first who received money for such services, and is believed to be the first who subjected the art of oratory to strict theoretical rules. He was the most active leader in the revolution which established the oligarchy of the 400 in 411; and his only public speech was the one he delivered in his own defence on its overthrow in the same year. Thucydides called it the ablest that was ever made in similar circumstances, but it is now lost. Antiphon was condemned to death. There are 15 of his orations extant, the best edition of which is that of Dobson (London, 1828).