Twenty years have gone by since I was first appointed Director of Excavations at Ostia, and I feel that I have devoted the better part of my activity as an archaeologist to the great task of bringing the dead city back to life.

All that was known about Ostia when scientific investigation was first started there was the legendary tale of its foundation at the mouth of the Tiber by Ancus Marcius, fourth King of Rome ; its probable expansion under the republic, although the growth of Pozzuoli and the clogging up of the river’s bed would support the theory of a period of decline for Ostia at that time ; and its tremendous development under the Empire, especially in the second century. Of this there was proof in the vestiges of imperial constructions rising above ground and in the historically ascertained fact that Ostia was Rome’s trading centre and outlet on the sea. Little or nothing was known of the later period of the city, nor of its decline and final disappearance.