Several temples are dated from this reign, including that of Janus, the double-faced deity, who presided over peace and war--a most appropriate office to one capable of looking two ways at once, for there are always two sides to every quarrel. This temple must have been perfectly useless during the life of its founder, for it was never to be opened in the time of peace, and Numa preserved for Rome forty-three years of undisturbed tranquillity. He was emphatically the friend of order, and its usual consequences, prosperity to trade, with soundness of credit, and he encouraged commerce by giving a patron-saint or Lar to every industrial occupation. He marked also the value of good faith by building a temple to Bona Fides, and it may be presumed that the creditor, who, putting up with the loss of his little bill, sacrificed a bad debt in this Temple, was still in hope that he should eventually find his account in it. If it cannot be said that Numa never lost a day, it must be admitted that he made the most of his time; for he added two whole months to the year of Romulus. January and February were the names given to the time thus gained; but as the year did not then correspond with the course of the sun, it was usual to introduce, every other year, a supplementary month, so that if one year was too short, the next, by being too long, made it as broad as it was long in the aggregate. Numa Pompilius lived to be eighty-two; when he had the beatitude of dying as peacefully as he had lived; and so gently had Nature dealt with him, that she had suffered him to run up more than four scores, before her debt was satisfied. Certain stories are told of the funeral ceremonies that followed Numa's death; and it is said that the Senators acted as porters to his bier, in token of their appreciation of the imperial measures which Numa had himself carried. It has been stated, also, that he caused to be placed, within his tomb, a copy, on papyrus, or palm leaves,[9] of his own works, in twenty-four books; and it is certainly a happy idea to bury an author with his writings, when, if they have been provocative of sleep in others, he may eventually reap the benefit of their somniferous properties.