Following the Islamic Revolution in 1978, the political system changed from constitutional monarchy to Islamic republic. Then the construction of political power in the country needed to change so that new spectrums of political power decision making centers emerged in Iran. Motives, desires and actions of these new political power decision making centers in Iran, made them rename streets and public places through the country specially Tehran. For example Shahyad square changed to Azadi square and Pahlavi street changed to Valiasr street.