Porsena, after making peace with the Romans, among many other instances of generosity, ordered his army to carry back nothing but their arms when they retired, leaving the entrenched camp full of food and property of every kind for the Romans. For this reason, at the present day, whenever there is a sale of any public property, especially that which is taken in war, proclamation is always made, "Porsena's goods for sale," so that the Romans have never forgotten the kindness which they received from him. A brazen statue of him used to stand near the senate house, of plain and oldfashioned workmanship. XX. After this the Sabines invaded the country. Marcus Valerius, Poplicola's brother, and Posthumius Tubertus were then consuls, and Marcus, acting by the advice of Poplicola, who was present, won two great battles, in the second of which he slew thirteen thousand of the enemy without the Romans losing a man. He was rewarded for this, in addition to his triumph, by having a house built for him upon the Palatine Hill at the public expense. And whereas all other street doors open inwards, the doors of that house were made to open outwards, as a perpetual memorial of the honour paid him by the people, who thus made way for him. It is said that all the doors in Greece used once to open this way, arguing from the comedies, in which those who are coming out of a house always knock at the door, to warn those who are passing or standing near not to be struck by the leaves of the door, as they open. XXI. Next year Poplicola was consul for the fourth time. There was an expectation of a war against the Latins and Sabines combined.