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The Encyclopædia Iranica is a comprehensive research tool dedicated to the study of Iranian civilization in the Middle East, the Caucasus, Central Asia, and the Indian subcontinent.
a gold coin, in pre-Islamic times struck mainly for purposes of prestige. In Arabic of the classical Islamic period, the word dīnār had the double sense of a gold coin and of a monetary unit which might not be precisely embodied by actual coins.
(Ar. Bāb al-Abwāb), ancient city in Dāḡestān on the western shore of the Caspian Sea, located at the entrance to the narrow pass between the Caucasus foothills and the sea.