In order to obviate this difficulty, the Senate, after suppressing the legal obstacles in the way of marriages between the two orders, agreed in 309 to the creation of six military tribunes invested with the consular power; but, which was an essential point, it was the interrex who convoked the comitia and took the auspices.[116] During seventy-seven years the military tribunes were elected alternately with the consuls, and the consulship was only re-established permanently in 387, when it was opened to the plebeians. This was the result of one of the laws of Licinius Stolo. This tribune succeeded in obtaining the adoption of several measures which appeared to open a new era which would put an end to disputes. Still the patricians held with such tenacity to the privilege of alone taking the auspices, that in 398, in the absence of the patrician consul, an interrex was appointed charged with presiding over the comitia, in order not to leave this care to the dictator, and the other consul, who were both plebeians.[117] But in permitting the popular class to arrive at the consulship, care had been taken to withdraw from that dignity a great part of its attributes, in order to confer them upon patrician magistrates. Thus they had successively taken away from the consuls, by the creation of two questors, in 307, the administration of the military chest;[118] by the creation of the censors, in 311, the right of drawing up the list of the census, the assessment of the revenue of the State, and of watching over public morals; by the creation of the prætors, in 387, the sovereign jurisdiction in civil affairs, under the pretext that the nobility alone possessed the knowledge of the law of the Quirites; and lastly, by the creation of the curule ediles, the presidency of the games, the superintendence of buildings, the police and the provisioning of the town, the maintenance of the public roads, and the inspection of the markets. The intention of the aristocracy had been to limit the compulsory concessions; but after the adoption of the Licinian laws, it was no longer possible to prevent the principle of the admission of plebeians to all the magistracies. In 386 they had arrived at the important charge of master of the knights (_magister equitum_) who was in a manner the lieutenant of the dictator (_magister populi_);[119] in 387 access to the religious functions had been laid open to them;[120] in 345 they obtained the questorship; in 398, the dictatorship itself; in 403, the censorship; and lastly, in 417, the prætorship. In 391, the people arrogated the right of appointing a part of the legionary tribunes, previously chosen by the consuls.[121]