Authoritarianism is the oldest form of effective government. Just as curious note, dictatorship was introduced during the Roman epoch and was used as temporary measure during war times. Look for example in Ukraine where the same ruler is avoiding elections since some time due to war, in the root sense of the government-style it is possible to describe it as a dictatorship today, if it hadn't been for the negative connotation of that term in the last 100 years.