In Roman imperial times the ephebi had to deliver a speech at the Haloa.
In later times the ephebi also took part in the Proerosia.
Farther east is an underground passage leading eastward to a cave supposed to be the sanctuary of Aglaurus where the ephebi took the oath; with this passage is connected a secret staircase leading up through a cleft in the rock to the precinct of the Errephori on the Acropolis.
The story of the voluntary sacrifice of the Attic maiden Aglauros on behalf of her country in time of war (commemorated by the ephebi taking the oath of loyalty to their country in her temple), and of the leap of the three sisters over the Acropolis rock (see Erechtheus), probably points to an old human sacrifice.
The young men of the upper classes assumed the Greek hat, and were banded together into a gild of ephebi on the Greek model.
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