Dionysia- The festival of "Tragedies

http://web.eecs.utk.edu/~mclennan/Classes/US210/City-Dionysia.html

This link is to a website that offers information about the ancient Greek festival of Dionysia. The City Dionysia, which was held

on the 9th to 13th days of Elaphêboliôn (March 24-28), paid homage to Dionysus,  the 

god of the grape harvest, wine and wine making, of ritual madness and ecstasy. Some of the events included ritual parades and bloodless sacrifices, athletic competitions, and theater performances. The festival concluded on first full moon after the start and was followed by the Pandia, a small festival attributed to Zeus.