The Iranian Revolution took place in 1979 and led to the overthrow of the monarchy in Iran, which was ruled by Shah Mohammad Reza Pahlavi. Many Iranians were unhappy with the Shah's rule due to his authoritarian government and Western influence. The revolution was driven by various groups, including religious leaders like Ayatollah Khomeini, who called for a return to Islamic values. After the revolution, Iran became an Islamic Republic, fundamentally changing its political and social structure. The new government implemented strict laws based on Islamic principles, leading to significant changes in the lives of Iranian citizens. The revolution also had a lasting impact on the region and global politics.