The Reforms of Servius Tullius
At the end of Chapter 4 we noted that the'curiate constitution' left only vestigial traces in the later republican system. The reason for this is that it was superseded by new forms of organisation that were introduced in the course of Roman history. The first and most famous of these reforms was traditionally ascribed to King Servius Tullius. Servius divided the people into new tribes to replace the old tripartite division, and carried out the first census, a characteristic Roman institution by which the citizen population was not only enumerated but carefully distributed into ranks and status groups according to wealth and property. Indeed it is possible to argue, on the evidence of the sources, that Servius Tullius invented the idea of Roman citizenship.