A Saint A Day on Instagram: "🍷 The Martyr Whose Blood Still Amazes. September 19th The early Christian bishop whose courage in the face of persecution and miraculous preservation of his blood have inspired for centuries. #asaintaday ——— More about St Januarius: Born in the 3rd century, Januarius became bishop of Benevento, a city in southern Italy. During the Roman persecutions under Diocletian, he was arrested and executed in Naples around 305 AD. He is best known for the extraordinary phenome