Gibbon observes of the Roman superstition on the authority of Petronius, that it may be inferred that it was of Italian rather than barbaric extraction. Etruria furnished the people of Romulus with the science of divination. Early in the history of the Republic the law is very explicit on the subject of witchcraft. In the decemviral code the extreme penalty is attached to the crime of witchcraft or conjuration: 'Let him be capitally punished who shall have bewitched the fruits of the earth, or by either kind of conjuration (_excantando neque incantando_) shall have conjured away his neighbour's corn into his own field,' &c., an enactment sneered at in Justinian's _Institutes_ in Seneca's words. A rude and ignorant antiquity, repeat the lawyers of Justinian, had believed that rain and storms might be attracted or repelled by means of spells or charms, the impossibility of which has no need to be explained by any school of philosophy. A hundred and fifty years later than the legislation of the decemvirs was passed the _Lex Cornelia_, usually cited as directed against sorcery: but while involving possibly the more shadowy crime, it seems to have been levelled against the more 'substantial poison.' The conviction and condemnation of 170 Roman ladies for poisoning, under pretence of incantation, was the occasion and cause. Sulla, when dictator, revived this act _de veneficiis et malis sacrificiis_, for breach of which the penalty was 'interdiction of fire and water.' Senatorial anathemas, or even those of the prince, were ineffective to check the continually increasing abuses, which towards the end of the first century of the empire had reached an alarming height.[21] [21] It will be observed that _veneficus and maleficus_ are the significant terms among the Italians for the criminals.