Mohammad Reza Shah Pahlavi ruled Iran from 1941 until his departure in 1979, overseeing a period of significant transformation and turmoil. His reign was marked by ambitious modernization efforts, economic growth fueled by oil revenues, and increasing political repression. However, these developments also led to widespread discontent and unrest among various segments of Iranian society. Understanding the multifaceted factors that contributed to the Shah’s loss of power provides insight into the complexities of Iran’s political landscape during this era (britannica.com).