Commemorating the Martyrdom of Imam Ali Ridha (a.s.) (According to another report) 203 A.H. When we look at the history of the first 11 Imams, the aspects related to their existence on this Earth and the benefits mentioned for visiting them after they have passed away (their Ziyarat), we see that our 8th Imam has some special privileges related only to his visitation which no other Imam possesses.