is about 2.5 degrees in the Naqsh-e Rustam compound; and the magnetic orbital inclination of the structure is 18 degrees to the West relative to the magnetic North based on Schmidt's calculations. Therefore, the inclination of the structure relative to the geographic North will be about 15.5 degrees; meanwhile Ghiasabadi has considered the 18 degrees as the inclination of the structure from the geographic North. Inscriptions by Shapur I and Kartir On 1 June 1936, following the probations by the digging department of The University of Chicago Oriental Institute, some inscriptions were found on the Ka'ba-ye Zartosht structure that belonged to Shapur I and the priest Kartir; Shapur's Inscription is written in the three languages Greek (70 lines), Arsacid Middle Persian (30 lines) and Sassanian Middle Persian (35 lines) on three sides of the structure; and Kartir's Inscription, which is in 19 lines in Sassanian Middle Persian language, is below Shapur's. In Shapur's Inscription, which should be considered the "Revolution Resolution" of the Sassanian dynasty, he first introduces himself and mentions the regions he ruled and then describes the Persian-Roman Wars and indicates the defeat and death of Marcus Antonius Gordianus, after whom the Roman forces proclaimed Marcus Julius Philippus the emperor; and the latter paid Shapur a compensation equal to half a million gold dinars for reprieve and returned to his homeland. Following that, Shapur has described his battle with the Romans along with an elaborate list of the Roman states from which he had gathered the forces. The battle, which was for Armenia, was the largest defeat that the Sassanians inflicted upon the Romans. Shapur then adds that "I apprehended Caesar Valerian myself, by my own hands." and mentions the names of the lands that he conquered in that battle. He then appreciates the power of God for giving him the power for victory and launches a lot of fire temples for his satisfaction to remark the names of the people who were involved in establishing the Sassanian government in front of the fire and finally advises the successors to strive for divine work and charity affairs. The inscription is historically considered very interesting and one of first class proofs of the Sassanian era; and one of the most important documents of the period for the limits and spans of the Sassanian Persian borders. In addition, the inscription is the last time that the Greek alphabet and language