The votes continued to be taken by head, as in the curiæ, but the majority of the votes in each century counted only for one suffrage. Now, as the first class had ninety-eight centuries, while the others, taken together, had only ninety-five, it is clear that the votes of the first class were enough to carry the majority. The eighteen centuries of knights first gave their votes, and then the eighty centuries of the first class: if they were not agreed, appeal was made to the vote of the second class, and so on in succession; but, says Livy, it hardly ever happened that they were obliged to descend to the last.[45] Though, according to its original signification, the century should represent a hundred men, it already contained a considerably greater number. Each century was divided into the active part, including all the men from eighteen to forty-six years of age, and the sedentary part, charged with the guard of the town, composed of men from forty-six to sixty years old.[46] With regard to those of the sixth class, omitted altogether by many authors, they were exempt from all military service, or, at any rate, they were enrolled only in case of extreme danger.[47] The centuries of knights, who formed the cavalry, recruited among the richest citizens, tended to introduce a separate order among the nobility,[48] which shows the importance of the chief called to their command. In fact, the chief of the _celeres_ was, after the king, the first magistrate of the city, as, at a later period, under the Republic, the _magister equitum_ became the lieutenant of the dictator. The first census of Servius Tullius gave a force of eighty thousand men in a condition to bear arms,[49] which is equivalent to two hundred and ninety thousand persons of the two sexes, to whom may be added, from conjectures, which, however, are rather vague, fifteen thousand artisans, merchants, or indigent people, deprived of all rights of citizenship, and fifteen thousand slaves.[50] The comitia by centuries were charged with the election of the magistrates, but the comitia by curiæ, being the primitive form of the patrician assembly, continued to decree on the most important religious and military affairs, and remained in possession of all which had not been formally given to the centuries. Solon effected, about the same epoch, in Athens, a similar revolution, so that, at the same time, the two most famous towns of the ancient world no longer took birth as the basis of the right of suffrage, but fortune. Servius Tullius promulgated a great number of laws favourable to the people; he established the principle that the property only of the debtor, and not his person, should be responsible for his debt. He also authorised the plebeians to become the patrons of their freedmen, which allowed the richest of the former to create for themselves a _clientèle_ resembling that of the patricians.[51] [Sidenote: Religion.]