Map of Byzantine Constantinople. The Prosphorion harbour is located in the eastern part of the city, on the southern shore of the Golden Horn, near its mouth into the Bosphorus

The Prosphorion Harbour (Greek: Προσφόριον) was a harbour in the city of Constantinople, active from the time when the city was still the Greek colony of Byzantium (657 BC – 324 AD), until the eve of the first millennium.[1][2] Gradually enlarged, it was the first port to be built in the area of the future Constantinople.[1][2]

  1. ^ a b Janin (1964), p. 235
  2. ^ a b Müller-Wiener (1977), p. 57