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The Apadana Palace

Darius I built the greatest palace at Persepolis on the western side of platform. This palace was called the Apadana. The King of Kings used it for official audiences.

Foundation tablets of gold and silver were found in two deposition boxes in the foundations of the Palace. They contained an inscription by Darius in Old Persian cuneiform, which describes the extent of his Empire in broad geographical terms, and is known as the DPh inscription:

Darius the great king, king of kings, king of countries, son of Hystaspes, an Achaemenid. King Darius says: This is the kingdom which I hold, from the Sacae who are beyond Sogdia, to Kush, and from Sind (Old Persian: 𐏃𐎡𐎭𐎢𐎺, romanized: Hidauv, locative of Hiduš, i.e. " Indus valley ") to Lydia (Old Persian: Spardâ) – what Ahuramazda, the greatest of gods, bestowed upon me. May Ahuramazda protect me and my royal house!

The reliefs on the staircases allow one to observe the people from across the empire in their traditional dress, and even the king himself, "down to the smallest detail".