About 12 kilometers southwest of the ancient city of Ecbatana (modern Hamadan) in western Iran, and 2,000 meters above sea level on Mount Alvand, are two huge panels carved into the rock. They are cuneiform inscriptions made in the time of Darius I the Great and his son Xerxes I.
At some point in antiquity, possibly after Alexander's conquest, the inscriptions became unreadable as there was no longer anyone who knew how to read the ancient cuneiform script.
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Local people began to make legends and conjectures about them, and came to the conclusion that they must contain the secret code that leads to a fabulous hidden treasure, so they called the place Ganj Nameh, literally book of treasures.
The Ganj Nameh Inscriptions. Photo: Salman arab ameri/Wikimedia
Source: amusingplanet.com