Islamic Revolution Day is observed on February 11, commemorating the victory of the Iranian Revolution in 1979. This day marks the culmination of a series of protests and resistance against the rule of Shah Mohammad Reza Pahlavi, who had implemented secular reforms and sought to modernize Iran. The revolution led to the return of Ayatollah Ruhollah Khomeini, who played a pivotal role in overthrowing the Shah's regime. The celebration typically spans ten days, starting from Khomeini's return until the revolution's victory. Observances include public demonstrations and events that reflect on the historical significance of the revolution, which continues to influence global geopolitical dynamics. The day is particularly significant in Iran, where it is celebrated with various activities that honor the establishment of the Islamic Republic.