Doubtless in this period there was much agrarian agitation on the part of the tribunes, although we cannot be sure that any of the bills mentioned by Livy[1799] are historical. In like manner the leaders of the plebs, as candidates for the consular tribunate, are represented as agitating for the institution of pay for military service, the money to be derived from rents of public lands.[1800] When the reform came, however, it was by a voluntary concession of the senate extremely annoying to the tribunes, who found themselves thus deprived of a useful ground for complaint, 406.[1801] Epoch-making were the Licinian-Sextian laws, the first, 368, increasing the duoviri sacris faciundis to decemviri and providing that five should be plebeian,[1802] the second, 367, containing in Livy’s opinion four articles: (1) that one consul must be plebeian,[1803] (2) that the interest already paid on debts should be deducted from the principal and the balance rendered in three equal annual instalments, (3) that no one should occupy more than five hundred iugera of the public land,[1804] (4) that the right to pasture cattle and sheep on the public land should also be limited.[1805] Thereafter we find the tribal assembly more active in legislation. To the year 358 is assigned the first well-authenticated lex de ambitu, the Poetelian plebiscite, which forbade candidates for office to visit markets and meeting-places outside the city for electioneering purposes.[1806] The motive, however, which Livy attributes to the author—to prevent the further enlargement of the patricio-plebeian nobility through the admission of new men—was hardly possible at this early date.