The ancient site of the main city is centred on the rocky hill of the acropolis. In the whole of Athenian territory they existed many towns. Acharnae, Afidnes, Cytherus, Colonus, Corydallus, Cropia, Decelea, Euonymos, Vravron among others was important towns in Athenian countryside. The new port of Piraeus was a prototype harbour with the infrastructure and housing located in the site between modern passenger section of the port (named Kantharos in ancient times) and the Pasalimani harbour (named Zea in ancient times). The old one Phaliro was in the site of modern Palaio Faliro and gradually declined after the construction of the new prototype port but remained as a minor port and important settlement with historic significance in late Classical times. The rapid expansion of the modern city, which continues to this day, took off with industrial growth in the 1950s and 1960s. The expansion is now particularly toward the East and North East (a tendency greatly related to the new Eleftherios Venizelos International Airport and the Attiki Odos, the freeway that cuts across Attica). By this process Athens has engulfed many former suburbs and villages in Attica, and continues to do so. The table below shows the historical population of Athens in recent times.