Bisutun Inscription (Behistun Inscription) is a multi-lingual inscription located on Mount Bisutun in the Kermanshah Province of Iran, near the city of Kermanshah in western Iran.

Authored by Darius the Great sometime between his coronation as king of the Persian Empire in the summer of 522 BC and his death in autumn of 486 BC, the inscription includes three versions of the same text, written in three different cuneiform script languages: Old Persian, Elamite, and Babylonian (a later form of Akkadian). In effect, then, the inscription is to cuneiform what the Rosetta Stone is to Egyptian hieroglyphs: the document most crucial in the decipherment of a previously lost script.

The inscription is approximately 15 metres high by 25 metres wide and 100 metres up a limestone cliff from an ancient road connecting the capitals of Babylonia and Media (Babylon and Ecbatana, respectively). The Old Persian text contains 414 lines in five columns; the Elamite text includes 593 lines in eight columns, and the Babylonian text is in 112 lines.

The monument suffered some damage from Allied soldiers using it for target practice in World War II, during the Anglo-Soviet invasion of Iran.

In 1999, Iranian archeologists began the documentation and assessment of damages to the site incurred during the 20th century. Malieh Mehdiabadi, who was project manager for the effort, described a photogrammetric process by which two-dimensional photos were taken of the inscriptions using two cameras and later transmuted into 3-D images.

In recent years, Iranian archaeologists have been undertaking conservation works. The site became a UNESCO World Heritage Site in 2006. In 2012, the Bisotun Cultural Heritage Center organized an international effort to re-examine the inscription.

The site covers an area of 116 hectares. Archeological evidence indicates that this region became a human shelter 40,000 years ago. There are 18 historical monuments other than the inscription of Darius the Great in the Behistun complex that have been registered in the Iranian national list of historical sites.

Sources: Tasnim News | Photos, Wikipedia | Behistun Inscription