The four forms of mental self-government are hierarchical, monarchic, oligarchic, and anarchic. The Sergeants' Revolt undermined the institutions and coercive structures of the oligarchic state. BCE witnessed the rise of the Mahajanapadas, sixteen powerful and vast kingdoms and oligarchic republics. They were the magnates of commerce who controlled the city and its oligarchic council. The oligarchic nobles responded by murdering Gracchus. This perpetuated an oligarchic system of local control. The democratic man is the son of the oligarchic man. He wrote "Political Parties&colon; A Sociological Study of the Oligarchic Tendencies of Modern Democracy" (1911). Some of them have descended from the erstwhile ruling and oligarchic families. The oligarchic constitution is based on property assessment and wealth qualification. These are the writers within the model of the liberal oligarchic state. Carthaginian society was itself even more oligarchic than Rome's. It starts with planetesimals that undergo runaway growth, followed by the slower oligarchic stage. Some contemporary authors have characterized current conditions in the United States as oligarchic in nature. Growth later slows and continues as oligarchic accretion.