But not only did the tribe assemblies infringe the power of those of the centuries, they became the later model of the latter, and the tendency to detract from the influence of wealth was shown in the reorganisation of the _comitia centuriata_ on a tribal basis.[1250] The date of this change is unknown; but, as the redistribution of the centuries in its final form assumes the existence of thirty-five tribes, the alteration may not be earlier than the year 241 B.C. The leading principle of the new arrangement was that the five classes were distributed over all the tribes in such a manner that there were two centuries of each class—one century of _seniores_ and one of _juniores_—in a single tribe. Each class thus had two votes in a tribe and seventy votes in all. The eighteen centuries of knights still stood outside the tribe; so did the four centuries of _fabri_, _accensi_, _tibicines_ and _cornicines_, and the fifth century of _proletarii_ which probably existed at this time.[1251] The total number of centuries would thus be 373 (350 + 18 + 5). The majority of this number is 187, but the first class and the _equites_ together now have but 88 votes, thus losing their preponderance in voting power. In spite of this arrangement by tribes there is no tribal vote. The unit of voting is still the century, and it is the number of centuries that decides the question. The organisation is still by classes, the seventy centuries of each class voting as distinct bodies.[1252] The _equites_ seem still to have had the right of voting first,[1253] and the first class took precedence of the others; for the lot which designated the _centuria praerogativa_[1254] seems to have been cast only amongst the seventy groups of _seniores_ and _juniores_ belonging to this class.[1255] The restoration by Sulla of the older method of voting (88 B.C.)[1256] was not a permanent reform. It disappeared during the Cinnan reaction, and it is questionable whether it was renewed by the dictator. If it was, it soon vanished with other items of his aristocratic reorganisation. The _comitia tributa_ was the most handy of all the assemblies of the full Populus, and was, consequently, the most frequently employed for the passing of _leges_. Its presidents were the patrician magistrates, usually the consuls and praetors and, for purposes of jurisdiction, the curule aediles. It elected these aediles and other lower magistrates of the people, as well as the twenty-four tribunes of the first four legions. Its jurisdiction was limited to pecuniary penalties.