The ancient Persian inscriptions are the words of the Achaemenid kings, illuminating an important part of the history and civilization of mankind, through which researchers and archaeologists, after deciphering them, have succeeded in discovering a period of magnificence in the history, during which time, human was in a prominent and sublime level. The kings, who had all kinds of people in their realm, were treating them with regard and respect and all people were equal to them. An era in which there was no slaveholding, injustice nor oppression.