Although compared to Modern Times taxes were considerably lower in Roman Antiquity, taxes were seen as a massive infringement of rights which needed additional justification. Raising taxes and contributions often caused turmoil and uprising among the population and immunity from taxes was not only seen as a great privilege, but also as a sign of freedom. At least partly, the unpopularity of taxes was owed to the publicans, private entrepreneurs who bought the collections from the state for a fixed price and were allowed to keep the rest. During the time of Augustus a private treasury of the imperial family was instituted and its agents undertook some of the functions of the old Republican treasury while at the same acquiring new financial s...