Why did historians add the designation of the Byzantine Empire when the people at the time did not use that designation?

Is karma the same as destiny, in the sense that everything that happens to you is predetermined? do you believe that "what goes around comes around," and if so is this the same as karma? does everyone get what they deserve, in the end?

Members of the common school movement believed that

President eisenhowers foreign policy stressed peace, threatened massive retaliation for attacks and what