George Willis Botsford,
The Roman assemblies from their origin to the end of the Republic
(1909)
“ A pagus became a populus at the point of time when it asserted its political independence of the folk. The new state organized itself in tribes and curiae after the pattern of the folk. In the main this arrangement [7] was artificial, yet it must have taken some account of existing ties of blood. [33] At the same time the oppidum became an urbs [34] —a city, the seat of government of the new populus. Thus arose the city-state. In the case of Rome several oppida with parts of their respective pagi [35] were merged in one urbs—that known as the city of the four regions. ”
