Historical Change of the strategies for the Recognition of Concealment in the Conduct of Shiite Imams

Concealment is considered as one of the main issues of research on the history of Islamic beliefs. Shiites of Imamiyeh have been considered as the most believers of concealment compared with the other religions. They have practiced this issue along with the discussion about its theoretical and jurisprudential aspects. The other religions did not show any interest to it because they considered it to be absolutely related to the early Islam and accepted its function in rare cases.  This research is to investigate the most important ways prevalent among Shiites of Imamiyeh to practice concealment and its fulfillment with a historical approach. This study clarifies that concealment has been the contradictory statement of beliefs and it has been done until the beginning of the second century, afterward the behaviors such as the criticism of relatives, disagreement on the religious issues and lack of unity among the fellow believers due to the increase of Shiites and the political and social pressures were observed in regard with it