[1][2] Livy, writing some 200 years after the event, offers a scandalized and extremely colourful account of the Bacchanalia, with frenzied rites, sexually violent initiations of both sexes, all ages and all social classes; he represents the cult as a murderous instrument of conspiracy against the state.
This may have been motivated less by the kind of lurid and dramatic rumours that Livy describes than by the Senate's determination to assert its civil, moral and religious authority over Rome and its allies, after the prolonged social, political and military crisis of the Second Punic War (218–201 BC).
Tenney Frank suggests that some form of Dionysian worship may have been introduced to Rome by captives from the formerly Greek city of Tarentum in southern Italy, captured from the Carthaginians in 209 BC.
[5] The wine and fertility god Liber Pater ("The Free Father"), divine patron of plebeian rights, freedoms and augury, had a long-established official cult in the nearby temple he shared with Ceres and Libera.
[6] Livy claims the earliest version of the Bacchanalia was open to women only, and held on three days of the year, in daylight; while in nearby Etruria, north of Rome, a "Greek of humble origin, versed in sacrifices and soothsaying" had established a nocturnal version, added wine and feasting to the mix, and thus acquired an enthusiastic following of women and men.
[7][3][2][8] The inquiry claimed that under the cover of religion, priests and acolytes broke civil, moral and religious laws with impunity; weak-minded individuals could be persuaded to commit ritual or political murders undetected, at the behest of those who secretly controlled the cult, right in the heart of Rome.
Similar attrition may have been imposed on Liber's cults; his perceived or actual association with the Bacchanalia may be the reason that his Liberalia ludi of 17 March were temporarily moved to Ceres' Cerealia of 12–19 April.
[11] Though most of his dramatis personae are known historical figures, their speeches are implausibly circumstantial, and his characters, tropes and plot developments draw more from Roman satyr plays than from the Bacchanalia themselves.
[5][12][6] For Livy, the cult's greatest offences arose from indiscriminate mixing of freeborn Romans of both sexes and all ages at night, a time when passions are easily aroused, especially given wine and unrestricted opportunity.
While the pace of such introductions had gathered rapidly during the 3rd century, contemporary evidence of the Bacchanalia reform betrays no anti-Greek or anti-foreign policy or sentiment.
[18] Nevertheless, the extent and ferocity of the official response to the Bacchanalia was probably unprecedented, and betrays some form of moral panic on the part of Roman authorities; Burkert finds "nothing comparable in religious history before the persecutions of Christians".