Gerrha

Gerrha (Ancient 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 his successors of the Seleucid Empire in the region, Gerrha became a site of central importance in the Hellenistic world and the major site of trading in the Persian Gulf region. It was a major source of Arabian aromatics and for the transport of goods from India.