Statistical Analysis of the Reasons of Relative Stability of Safavid Government Among Governments of Iran in Islamic Period

摘要

Founders of the Iran state in the Islamic period rooted in the ancient and historical city of Ardabil in Azerbaijan and were descendant of Sheikh Safi Ardabili, the mystic of the eighth century AD. He was born in 650 AD in the city of Ardabil a nd while he was 25 years old, he accepted over long discipleship of Taj al - Din Sheikh Zahed Gilani . In the year 700 AH, Sheikh was succeeded by his teacher and died in the year 735 AH . His successors were placed one after another on Guidance and among them Sultan Junaid (grandfather of Shah Ismail) and Sultan Heidar (father of Shah Ismail) extraordinary efforts made to achieve power and worldly power. But both los t their lives in the war against Sherwan Shahs despite enjoying the support of a particular gro up of disciples of Turkoman which later became known Qezelbashie it was no use until Ismail, the sixth generation descendant of Sheikh Safi City, succeeded in defeating Sherwan S hahs, Alvand and Morad Aghkoyunlular and established Safavid state in AD 907, in Tabriz and had coronation as the first Safavid king's. Statistical analysis about the Safavids in Iran indicates that five Factors of "age of the kingdom," "age of occurrence of de ath", "the event of death" and "for the kingdom" and "limited number of k ings" affected the stability of the government and it has continued for 230 years. The research is done based on the application of statistics on correspondence in which the data will be evaluated during the time.