JANUARIUS, ST, or SAN GENNARO, the patron saint of Naples. According to the legend, he was bishop of Benevento, and flourished towards the close of the 3rd century. On the outbreak of the persecution by Diocletian and Maximian, he was taken to Nola and brought before Timotheus, governor of Campania, on account of his profession of the Christian religion. After various assaults upon his constancy, he was sentenced to be cast into the fiery furnace, through which he passed wholly unharmed. On the following day, along with a number of fellow martyrs, he was exposed to the fury of wild beasts, which, however, laid themselves down in tame submission at his feet. Timotheus, again pronouncing sentence of death, was struck with blindness, but immediately healed by the powerful intercession of the saint, a miracle which converted nearly five thousand men on the spot. The ungrateful judge, only roused to further fury by these occurrences, caused the execution of Januarius by the sword to be forthwith carried out. The body was ultimately removed by the inhabitants of Naples to that city, where the relic became very famous for its miracles, especially in counteracting the more dangerous eruptions of Vesuvius. Whatever the difficulties raised by his _Acta_, the cult of St Januarius, bishop and martyr, is attested historically at Naples as early as the 5th century (_Biblioth. hagiog. latina_, No. 6558). Two phials preserved in the cathedral are believed to contain the blood of the martyr. The relic is shown twice a year--in May and September. On these occasions the substance contained in the phial liquefies, and the Neapolitans see in this phenomenon a supernatural manifestation. The "miracle of St Januarius" did not occur before the middle of the 15th century. A great number of saints of the name of Januarius are mentioned in the martyrologies. The best-known are the Roman martyr (festival, the 10th of July), whose epitaph was written by Pope Damasus (De Rossi, _Bullettino_, p. 17, 1863), and the martyr of Cordova, who forms along with Faustus and Martialis the group designated by Prudentius (_Peristephanon_, iv. 20) by the name of _tres coronae_. The festival of these martyrs is celebrated on the 13th of October. See _Acta sanctorum_, September, vi. 761-891; G. Scherillo, _Esame di un codice greco pubblicato nel tomo secondo della bibliotheca casinensis_ (Naples, 1876); G. Taglialatela, _Memorie storico-critiche del culto del sangue di S. Gennaro_ (Naples, 1893), which contains many facts, but little criticism; G. Albini, _Sulla mobilità dei liquidi viscosi non omogenei_ (_Società reale di Napoli, Rendiconti_, 2nd series, vol. iv., 1890); _Acta sanctorum_, October, vi. 187-193. (H. De.)