The period of rightly guided caliphs is the period of time in which first four caliphs were in charge after the Prophet Muhammad. This period has a crucial place in the history of Islam in terms of efficiency of Prophets' companions during this time and this era comes just after the Prophet Muhammad. The effects of the incidents that emerged during this period of time, have reflected over the following periods. That’s why many comments and remarks have been made on the persons who lived in this period. But one point which is neglected by many researchers, is the social change in this era. As it is well known, social change has very big influence on the incidents during this process. Anyone should be cautious on this issue while making comment and criticism