Zeus Atarbyrius was the protecting deity of acragas, and human sacrifices were offered to his iron bull-image on the citadel of that city as late as the middle of the sixth century.
"The History of Antiquity, Vol. II (of VI)"
Max Duncker
Then acragas on the steep, once the breeder of noble horses, displays its massive walls in the distance; and with granted breeze I leave thee behind, palm-girt Selinus, and thread the difficult shoals and blind reefs of Lilybaeum.
"The Aeneid of Virgil"
Virgil