DAULIS, in Ancient Geography, one of the oldest towns of Phocis, not far from the confines of Bœotia. It was associated in mythology with the tragic story of Tereus, Progne, and Philomela. Daulis was twice destroyed in ancient times; first by Xerxes, in the second Persian invasion; and afterwards by Alexander the Great. Its position, on the top of a strong hill, rendering it important as a military station, caused it to be rebuilt. The ruins of Daulis are still to be seen near the modern village of Dhavlia.