Note 202 — Introductory Essay on Caste (continued 2)

This sacrifice was called a lustratio or purification, and in the historical period was considered to be expiatory. But it does not seem probable that this was its original significance. For there would not in that case have been the paramount necessity for every citizen to be present. All females and children under power were purified through the list given to the censor, and there seems no reason why absent citizens could not have been purified in the same manner. But participation in this sacrifice was itself the very test and essence of citizenship. And it has been seen that a public meal was the principal religious rite of the city. The conclusion therefore seems reasonable that the Suovetaurilia was originally also a sacrificial meal of which each citizen partook, and that the eating of the deified domestic animals in common was the essence of the rite and the act which conferred the privilege of citizenship. The driving of the sacrificial animals round the citizens three times might well be a substitute for the previous communal meal, if for any reason, such as the large number of citizens, the practice of eating them had fallen into abeyance. The original ground for the taking of a census was to ensure that all the citizens were present at the communal sacrifice; and it was by the place which a man occupied on this day that his rank in the city was determined till the next sacrifice. If the censor counted him among the senators, he remained a senator; if among the equites, he remained a knight; if as a simple member of a tribe, he belonged henceforward to the tribe in which he was counted. If the censor refused to enumerate him, he was no longer a citizen.202 Such was the vital importance of the act of participation in the sacrifice.