in antiquity, the panhellenic festivals and competitions in honor of the god Poseidon held every two years on the Isthmus of Corinth. Originally they were significant locally, but in the early sixth century B.C. they assumed panhellenic importance. Gymnastic, equestrian, and, later, poetry and music competitions were conducted at the festivals. A palm branch was presented to the victor, and he was crowned with a wreath of celery or pine. Archaeological excavations, begun in the 1880’s, revealed a theater, hippodrome, and stadium near Corinth as well as the remains of temples to Poseidon and Melicertes.