The Karbala Case, is one of the most tragical incidents experienced in Muslims' history. The grandson of Exc. Muhammed, Exc. Huseyin with a little group subject to him has come accross the army of Emevi Caliph Yezid in 61. Year 10. of Muharrem month of the Hegira, in Karbala which is inside the bordars of Iraq today, and Exc. Huseyin and his companions including children and women were martyrized. Muslims, foremost in Kufe which was selected as the administration center by Exc. Ali, have shown reaction to the caliphate of Yezid after Exc. Muaviye' death. That Yezid became caliph not relying on council and election system, was a sign of separations to occur between muslims. Primarily, people of Kufe known for their dependence to Exc. Ali have invited Exc. Huseyin to Kufe sending him a letter. The selection of Damascus as capital and a center for the conquests during the epoch of Ummayads, has caused a decrease in the incomes of previous capital and resulted in losing its political importance. Killings of Muslim bin Akil and Han bin Urve, who were known for their dependence to Exc. Ali, by newly appointed Ummayid caliph Ubeydullah, caused reactions. Exc. Huseyin was warned at first by Abdullah bin Abbas not to go to Kufe and even the poet of the epoch Ferazdak told him : " Don’t go Kufe, their hearts are with you but swords with Ummeyye sons" according to historical sources. The war between Exc. Huseyin and Umayyid army has initiated in Karbala 100 km far from Baghdat. Before the war started, a group has joined to Omar bin Saad, the Umayyid governor. The umayyid army has killed those who tried to protect Exc. Huseyin, and when only Exc. Huseyin was left, they walked up to him, by the order of Omar bin Saad. At first Exc. Huseyin was hit by sword in the head and then he was arrowed in the throat. The killing beat was striked to Exc. Huseyin who was injured, by Semir who had once joined to Muaviye from the part of Exc. Ali, during the Siffin war. Exc. Huseyin and his 72 companions and 88 Kufe soldiers slaughtered. After being cut the heads of Exc. Huseyin and others killed, were sent to Kufe and then Damascus. Among those who were sent to Damascus included the women and children in company with Exc. Ali. These women and children were guarded for a year and then freed. Martyring Exc. Huseyin in Karbala, had caused most of the Exc. Prophet’s family to annihilate as well as leaving Ummayid caliph unrivalled and Shiah movement to occur. Shiah, didn’t only occur as an order upon the Karbala case, but also it became a political movement on behalf of Ahl al-Bayt. The shiites, have started to defend, even to believe in a religious faith the idea that it was only the right of descendents of Exc. Ali to be caliph, as a reaction to the hereditary reign understanding of Ummayids. The case of Karbala wan not only an incident reproved by Shiah. Actually it is an element which combine the Sunni and Shiah world. Because, the religious movements exclusive Shiah reminded the slaughter of Exc. Huseyin as a tragical incident; cursed those who contributed the slaughter foremost Yezid. Elegies were written, reunions were held in the sunni world telling the tragedy Exc. Huseyin faced in Karbala. After the corpse of Exc. Huseyin was buried by the people of Karbala, his sepulcher was constructed by the Abbasid Caliph el Mutevekkil. The sepulcher was restored by the sons of Buveyhi, Sultan Malikshah and Ilhanian ruler Gazan Muhammed, and reconstructed by Ottoman sultan Murad the III..