Gerrha

Gerrha (Koine Greek: Γέρρα, romanized: Gérrha) was an ancient and renowned city within Eastern Arabia, on the west side of the Persian Gulf. Known from Greek sources, it has been identified with a few candidate archaeological sites in Eastern Arabia, with the main candidates being Hagar (modern-day Hofuf) and Thaj.

In the aftermath of the conquests of Alexander the Great and the subsequent Seleucid Empire in the region, Gerrha became a site of central importance in the Hellenistic world and the major site of trading with Arabia in the Persian Gulf. It was a major source of Arabian aromatics and for the transport of goods from India.