The activity of the comitia centuriata, thus authoritatively established, manifested itself in the passing of the Valerian-Horatian laws of 449,[1399] the lex Iulia Papiria de multarum aestimatione, 430,[1400] the law for the election of six military tribunes by the comitia tributa, 362,[1401] the law of the dictator Publilius Philo, 339,[1402] the third Valerian law concerning appeal, 300,[1403] and finally the Hortensian law, 287.[1404] All have reference to the regulation of magistracies or of assemblies. Meantime the centuriate comitia passed the law for instituting tribunes of the soldiers with consular power, 445,[1405] and censors, 443[1406] (or 435?), for increasing the number of quaestors, 421,[1407] for instituting the praetorship, 367,[1408] and the curule aedileship in the same year.[1409] All the laws thus far mentioned, excepting that for the division of the Aventine, effected important modifications of the constitution, the most of them forced upon the senate and magistrates in the struggle for equal rights in which the commons were engaged with the nobility. In like manner two provisions of the Valerian law of 342, (1) that the name of no soldier should be erased from the muster roll without his consent. (2) that no military tribune should be degraded to the rank of centurion,[1410] established under the sanction of an oath certain fundamental rights on which the soldiers and their officers respectively insisted. Another provision, the total abolition of debts,[1411] if indeed it is historical, was administrative, and is considered therefore in another connection.[1412] Of the same nature, though less sweeping, was the Hortensian provision for the relief of debtors.