Twenty miles southwest of Rome, obscured by agricultural fields, woodlands, and the modern infrastructure of one of Europe’s busiest airports, lies what may be ancient Rome’s greatest engineering achievement, and arguably its most important: Portus. Although almost entirely silted in today, at its height, Portus was Rome’s principal maritime harbor, catering to thousands of ships annually. It served as the primary hub for the import, warehousing, and distribution of resources, most importantly grain, that ensured the stability of both Rome and the empire. “For Rome to have worked at capacity, Portus needed to work at capacity,” says archaeologist Simon Keay. “The fortunes of the city are inextricably tied to it. It’s quite hard to overestimate.” Portus was the answer to Rome’s centuries-long search for an efficient deepwater harbor. In the end, as only the Romans could do, they simply dug one.
Although it had previously received little attention archaeologically, over the last decade and half Portus has been the focus of an ambitious project that is rediscovering the grandeur of the port, its relationship to Rome, and the unparalleled role it played as the centerpiece of Rome’s Mediterranean port system. Keay, of the University of Southampton, is currently director of the Portus Project, now in its fifth year, but has been leading fieldwork in and around the site since the late 1990s. He is part of a multinational team investigating Portus’ beginnings in the first century A.D., its evolution into the main port of Rome, and, ultimately, the complex dynamics of the port’s relationship with the city and the broader Roman Mediterranean. The multifaceted project involves a number of institutions, including the United Kingdom’s Arts and Humanities Research Council, the British School at Rome, the University of Cambridge, and the Archaeological Superintendency of Rome. ….
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