Birth of Sattar Khan (national leader of Iranian Constitutional Revolution), Mehr 28. Sattar Khan was a prominent figure in modern Iranian history who played a significant role in the Constitutional Revolution. He became known as a leading force in the popular resistance in Tabriz during the late Qajar era, and his efforts in defending constitutionalism and the pursuit of civil rights have secured his place in Iran’s historical memory. Born in 1866 in Azerbaijan, Sattar Khan led the people of Tabriz during the Constitutional Revolution, organizing resistance against government forces and opponents of constitutionalism. His leadership during the prolonged siege of Tabriz was a turning point in the movement, with estimates suggesting that hundreds of residents lost their lives during the conflict and the city endured severe hardship. In 1921, Sattar Khan’s birthday was designated as a commemorative event and added to the Jalali calendar to honor his role in Iran’s modern history. This decision was made by cultural activists and certain social organizations to keep alive the memory of Sattar Khan and other leaders of the Constitutional Revolution. The day is typically marked by memorial ceremonies, scholarly gatherings, and the publication of historical accounts about Sattar Khan’s life and activities.