Rey, Iran Rey, Iran Rey or Ray (; , Šahr-e Rey, “City of Ray”), also known as Rhages (; , or Europos (Ευρωπός) "Rhagai"; or "Rhaganae") and formerly as Arsacia, is the capital of Rey County in Tehran Province of Iran, and the oldest existing city in the province. Ray today has been absorbed into the Greater Tehran metropolitan area. Ray is connected via the Tehran Metro to the rest of Tehran and has many industries and factories in operation. Limited excavations of what was not bulldozed began in 1997 in collaboration with the Iranian Cultural Heritage and Tourism Organization (ICHTO), the
Military history of Ray, Iran Military history of Ray, Iran This article concerns the city of Ray, Iran (near Shahr-e-Rey) as a military objective, not the large territory of which it was once capital ("Ragau" in the Apocryphal Book of Judith). Ray, in an area of fertile lowland between the Zagros Mountains, the Elburz Mountains, and the great Dasht-e Kavir desert, commanded vital routes across and around the mountains, and was a key to power over the whole of Persia (Iran). The vast majority of ancient Persian literature has been lost, so little is known about the history of Ray before the arrival of Islam