During the third century, rome underwent a prolonged period that came very close to destroying the empire. this period is known as the time of: a. the paxromana, when the huns sacked rome. b. the quickening, when the bureaucratic changes came rapidly. c. the five bad emperors, when rome had the worst emperors in its history. d. the augustan decay, when all the reforms of marcus aurelius were implemented. e. the barracks emperors, when rome had no fewer than twenty-six emperors in about fifty years.