These persons in the emperor's palace would be employed in every conceivable capacity as household servants, cooks, bathmen, gardeners, grooms, kennel-keepers, porters, doorkeepers, messengers, secretaries, amanuenses, teachers, librarians, architects, carpenters, shoemakers, and in all other forms of service. Of course they were not all slaves: there was a very large number of freemen. The domus or familia Caesaris (represented by the Greek oikia Kaisaros) included the whole of the imperial household, the meanest slaves as well as the most powerful courtiers. On the character and constitution of this household we happen to possess more information than perhaps on any other department of social life in Rome. "In Rome itself, if we may judge by these inscriptions, the domus Augusta must have formed no inconsiderable fraction of the whole population; but it comprised likewise all persons in the emperor's service, whether slaves or freemen, in Italy and even in the provinces" (Lightfoot, Commentary on Phil, 171). In the list of offices filled by members of the imperial household were also such functions as those of keepers of the wardrobe or of the plate-chest; even the "tasters" formed a separate class of servants under a chief of their own. To belong to Caesar's household would secure even to the lowest grade of slaves substantial privileges and immunities, and would give a certain social importance, which made this position a valued one. An office in the emperor's household, however mean, was thought of so highly, that in the monumental inscriptions such a fact is recorded with scrupulous care.