Juventas
On the advice of the Sibylline books, which were read during anxieties about the Second Punic War, Juventas was part of sacrifices in 218 BC relating to a lectisternium, a public feast at which images of gods were displayed as if the gods were part of it. Like other deities whose cult was ordained by the Sibylline books, Juventas was called ritu graeco, following  "Greek" rite. Also at the lectisternium of 218 BC, a supplication was performed at the Temple of Hercules. In Greek myth, the divinized Hercules had Hebe as his wife. The cultivation of both deities at the time of the Second Punic War seems intended to reinvigorate men of fighting age: Juventas "was regarded as a powerful divine force rendering a vital gift of strength at a critical moment." This is also the first time the Genius Publicus ("Genius of the People") is written. After the disastrous Battle of Lake Trasimene in April 217 BC, Juventas, Hercules, and the Genius Publicus were excluded for a time from divine honors, as they were not thought to have been effective. Marcus Livius Salinator vowed a temple to her during the Battle of the Metaurus, when he faced Hasdrubal in 207 BC—an indication that Juventas was still felt to have power.