The development of Sparta, like the development of Rome, from aristocratic to republican government is characterized by the absence of tyrants. The fact is that the tribunate in the one case and the ephorate in the other was tyranny in commission, the division of its powers between ten and five annually changing officers respectively having proved to be a sufficient safeguard against the concentration of executive power in the person of a single individual, be he an inherited king robbed of monarchical rights or an ambitious demagogue aiming at their restoration. The new rules of law which the ephors enforced prescribed in minute detail the life of the citizen from the moment of his birth to the time of his death. They were the regulations of a military school in which war alone was taught, of military barracks when war was already declared. From seven years of age to sixty the entire energies of the male half of the population were directed toward being prepared for war. Boys and men drilled and hunted, learned to use their weapons and campaigned, danced and exercised, ate in the "messes" year in and year out, and never escaped the watchful eyes of trainers, subalterns, officers, and ephors. No one in Sparta had to make his own way in life. His whole course was mapped out for him before he was born. No citizen had any business cares; for all trade and industry were tabooed, and the lands which he inherited he could not sell. Neither could he buy those of another. The agricultural laborers were serfs, the sullen and recalcitrant Helots, of whom there were fifteen to every Spartan; the clothing and weapons were made by the contented and tractable Perioecs, who outnumbered the Spartans five to one, and formed with their one hundred hamlets and their contiguous territories an insulating band round Helots and Spartans alike. Iron money was the only local currency, though silver had, of course, to be given in payment for the articles which were imported from abroad. These, however, were reduced to a minimum, and such foreigners as made their way through the wall of Perioecs were rounded up at intervals and forcefully expelled.