Although modeled on the Hispanic Constitution of 1812, the new charter did not address a number of issues included in the earlier document because the new Mexican federation shared sovereignty between the national government and the states. Thus, unlike the Constitution of Cádiz, which defined citizenship, the Mexican Constitution of 1824 remained silent on the subject. Similarly, it did not define who possessed the suffrage or the size of the population required to establish ayuntamientos, two significant factors in determining the popular nature of the Hispanic constitutional system. Those decisions were the prerogatives of the states.