Start of Green Movement, Khordad 25. On this day in 1388, large-scale protests erupted in Tehran and other Iranian cities in response to the announcement of the presidential election results. The election, held in Khordad 1388, ended with the declaration of Mahmoud Ahmadinejad as the winner, a result that was widely disputed by citizens and opposition candidates. On Khordad 25, hundreds of thousands gathered in the streets, with demonstrations largely peaceful but in some areas leading to clashes with security forces. Reports indicated at least several people were killed and dozens injured during the protests. One of the most prominent figures of this day was Neda Agha-Soltan, whose death during the demonstrations received widespread attention both domestically and internationally. The Green Movement is recognized as one of the largest protest movements in Iran since the 1979 revolution. It was characterized by slogans such as “Where is my vote?” and demands for electoral transparency and justice, continuing for months afterward. The events of Khordad 25, 1388, are considered a turning point in Iran’s contemporary history and are recalled each year with significant public and media discussion. This date is marked by some groups and activists as a symbol of civil protest and advocacy in Iran. The decision to designate this day in the Jalali calendar was made because of its prominent role in the political and social developments of 1388 and its lasting impact on Iranian society.