period (lustrum). This was called a closed lustrum, because with it the census was completed. Eighty thousand citizens are said to have been included in that census. Fabius Pictor, the oldest of our historians states that this was the number of those who could bear arms.
ToEnlargement of the City. contain that population it was obvious that the City would have to be enlarged. He added to it the two hills —the Quirinal and the Viminal —and then made a further addition by including the Esquiline, and to give it more importance he lived there himself. He surrounded the City with a mound and moats and wall; in this way he extended the pomoerium.
Looking only to the etymology of the word, they explain pomoerium as postmoerium; but it is rather a circamoerium. For the space which the Etruscans of old, when founding their cities, consecrated in accordance with auguries and marked off by boundary stones at intervals on each side, as the part where the wall was to be carried, was t