Rhamnous on the east coast of Attica, overlooking the island of Euboea, was a deme of strategic importance to Athens during the sixth and fifth centuries BC, because it guarded the Euripus Strait, providing safe passage for mercantile and war vessels intending to round the coast of Sounion en route to Piraeus port. Built on a promontory, surrounded three-quarters by sea, from inland the polis was only accessible via a narrow ridge from the mountain behind it. At its two small harbors, flanking the fortified city, ships could find shelter and replenish their water and food supplies under the watchful eye of the garrison that was placed there. The Euripus Strait was an important sea route that Athens depended upon
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