These were the various ways in which the Roman people was divided. Let us now see the effect on the assemblies. When lawfully summoned, these were called “comitia”: they were usually held in the public square at Rome or in the Campus Martius, and were distinguished as Comitia Curiata , Comitia Centuriata , and Comitia Tributa , according to the form under which they were convoked. The Comitia Curiata were founded by Romulus; the Centuriata by Servius; and the Tributa by the tribunes of the people. No law received its sanction and no magistrate was elected, save in the comitia; and as every citizen was enrolled in a curia, a century, or a tribe, it follows that no citizen was excluded from the right of voting, and that the Roman people was truly sovereign both de jure and de facto.