Fausset's Bible Dictionary
A city on a commodious harbour in the E. of Cyprus, the first place Paul and Barnabas visited after leaving the mainland at Seleucia, on their first missionary tour. The "synagogues" (implying the presence of many Jews) account for their going there first. Moreover Cyprus was Barnabas' birthplace (Acts 13:4-5). Herod the Great farmed the Cyprian copper mines, this would bring many Jews there (Josephus, Ant. 14:4, section 5). Salamis was near the river Pediaeus, on low ground. Constantine or his successor rebuilt it, and named it Constantia.
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Fausset, Andrew R. Entry for 'Salamis'. Fausset's Bible Dictionary. https://www.studylight.org/dictionaries/eng/fbd/s/salamis.html. 1949.