The Ashura is the most important celebration of the Shia Islam. In this day, and in all the islamic month of Moharram, the Shia Muslims remember the death of the Imam Hussein a leader of the Shia killed in the 7th century by the Sunni in the battle of Kerbala (Iraq). In Iran where the Shia is the first religion, those ceremonies involve all the aspect of the life and all the people cry and stay in mourning. During the moharram the women use strips of green cloth like good luck. In the tradition green is the color of Imam Hussein.