Built the long portico west of the Dionysiac theatre, which was excavated and identified in 1877; Attalus II.
The only extant structures of the classical period are the Hephaesteum, the Dionysiac theatre, and the choragic monument of Lysicrates.
It is said that he gave a great impetus to the dramatic representations which belonged to the Dionysiac cult, and that it was under his encouragement that Thespis of Icaria, by impersonating character, laid the foundation of the great Greek drama of the 5th and 4th centuries.
He flourished about 625 B.C. Several of the ancients ascribe to him the invention of the dithyramb and of dithyrambic poetry; it is probable, however, that his real service was confined to the organization of that verse, and the conversion of it from a mere drunken song, used in the Dionysiac revels, to a measured antistrophic hymn, sung by a trained body of performers.
Another choragic monument was that of Thrasyllus, which faced a cave in the Acropolis rock above the Dionysiac theatre.
In the archaic period the Dionysiac rites and orgies spread from Thrace into Greece, in spite of opposition which has left many traces in tradition, and the worship of Demeter at Eleusis was modified by Cretan influence ultimately traceable to Asia Minor.
This he diminished by increasing the splendour of the Panathenaic festival every fourth year and the Dionysiac 2 rites, and so created a national rather than a local religion.
The Dionysiac theatre, situated beneath the south side of the Acropolis, was partly hollowed out from its declivity.
Suidas reckons him one of the early poets and a writer of hymns of consecration, and Diodorus Siculus quotes a line from a Dionysiac hymn attributed to Eumolpus.
The reservoir is supplied by a conduit of 6th-century tiles connected with an early stone aqueduct, the course of which is traceable beneath the Dionysiac theatre and the royal garden in the direction of the Upper Ilissus.