Zoroa cube (Zoroaster kaabe) and the historical importance of shapur I rock relief

One of the most important building in Nagsh _e_ Rustan near Persepolis which is very important from historical and religious aspects is the cube of Zoroaster. Although the cube of Zoroaster is dated to achaemenid period but shapur I and kartirs rock reliefs on the wall of that building is very important to recognize the sassanid period. the trilingual inscription of shapur I. in acids Pahlavi sassanian Pahlavi, creek give us precious information’s abut sassanian period. The inscription has the most complete information about sassanid authority, descriptions of Iran and Rome wars, titles of honor and posts in sassanid court.