On 8th of the Islamic month of Rabi as-Sani in 232 AH, Imam Hasan al-Askari (AS), the 11th Infallible Successor of Prophet Mohammad (SAWA), was born in the city of Medina. He later moved to Samarra to join his father, Imam Ali al-Hadi (AS), who was forced to come to this Iraqi city by the tyrant Mutawakkel, the 10th self-styled caliph of the usurper Abbasid regime.