Ab urbe condita

Then he set himself to by far the greatest of all works in times of peace. Just as Numa had been the author of religious laws and institutions, so posterity extols Servius as the founder of those divisions and classes in the State by which a clear distinction is drawn between the various grades of dignity and fortune.

He instituted the census, a most beneficial institution in what was to be a great empire, in order that by its means the various duties of peace and war might be assigned, not as heretofore, indiscriminately, but in proportion to the amount of property each man possessed. From it he drew up the classes and centuries and the following distribution of them, adapted for either peace or war.

Those[*](The Classes and Centuries.) whose property amounted to, or exceeded 100,000 lbs. weight of copper were formed into eighty centuries, forty of juniors and forty of seniors.[*](The “juniors” betwen the ages of seventeen to forty-six, the “seniors” above that age. But military service was not obligatory on men over sixty.)

These were called the First Class. The seniors were to defend the City, the juniors to serve in the field. The armour which they were to provide themselves with comprised helmet, round shield, greaves, and coat of mail, all of brass; these were to protect the person. Their offensive weapons were spear and sword.

To this class were joined two centuries of carpenters whose duty it was to work the engines of war; they were without arms. The Second Class consisted of those whose property amounted to between 75,000 and 100,000 lbs.

weight of copper; they were formed, seniors and juniors together, into twenty centuries. Their regulation arms were the same as those of the First Class, except that they had an oblong wooden shield instead of the round brazen one and no coat of mail.

The Third Class he formed of those whose property fell as low as 50,000 lbs.; these also consisted of twenty centuries, similarly divided into seniors and juniors. The only difference in the armour was that they did not wear greaves.

In the Fourth Class were those whose property did not fall below 25,000 lbs.

They also formed twenty centuries; their only arms were a spear and a javelin. The Fifth Class was larger, it formed thirty centuries. They carried slings and stones, and they included the supernumeraries, the horn-blowers, and the trumpeters, who formed three centuries. This Fifth Class was assessed at 11,000 lbs.