Dies Natalis Vediovii
L. Furius Purpureo vowed a temple for Vediovis while fighting the Battle of Cremona (200 BCE) during which he defeated the Carthagininas under Hamilcar and their Gallic allies. The temple was built on the Insula in the River Tiber. It was then dedicated on 1 Janurary 194 BCE.
Sources: Livy, History 31.21; 34.53; Fowler, W. W. (1899) The Roman Festivals of the Period of the Roman Republic London.