One synonym for the term "Shah Pahlavi" is Mohammad Reza Pahlavi, who was the last Shah of Iran. Other synonyms for the term may include simply "the Shah" or "the Iranian king". The Pahlavi dynasty, which lasted from 1925 to 1979, was a controversial time in Iranian history, marked by political instability and social reform. While the Shah is remembered by some as a modernizing force, many others view his reign as a time of corruption and oppression. Regardless of one's perspective, the term "Shah Pahlavi" evokes a particular moment in Iranian history and a distinct political figure whose legacy is still being debated today.