Black Friday (Persian: جمعه سیاه, romanized: Jom'e-ye Siyāh) is the name given to an incident occurring on 8 September 1978 (17 Shahrivar 1357 in the Iranian calendar) in Iran, in which 64, or at least 100 people were shot dead and 205 injured by the Pahlavi military in Jaleh Square (Persian: میدان ژاله, romanized: Meydān-e Jāleh) in Tehran. According to the military historian Spencer C. Tucker, 94 were killed on Black Friday, consisting of 64 protesters and 30 government security forces. The deaths were described as the pivotal event in the Iranian Revolution that ended any "hope for compromise" between the protest movement and regime of Shah Mohammad Reza Pahlavi.