Mohammad Reza Pahlavi, also known as Mohammad Reza Shah, was the last Shah of Iran from 16 September 1941 until his overthrow by the Iranian Revolution on 11 February 1979. Mohammad Reza Shah took the title Shahanshah on 26 October 1967. He was the second and last monarch of the House of Pahlavi. Mohammad Reza Shah Pahlavi held several other titles, including that of Aryamehr and Bozorg Arteshtaran ("Commander-in-Chief"). His dream of what he referred to as a "Great Civilisation" in Iran led to a rapid industrial and military modernisation, as well as economic and social reforms.