St. Publius is a Christian saint recognized for his role as the first bishop of Malta. He is believed to have been a companion of the Apostle Paul during his missionary journeys. According to tradition, he played a significant part in spreading Christianity on the island after the shipwreck of Paul in 60 AD. His feast day is celebrated on January 21. St. Publius is often depicted in religious art, sometimes shown with a serpent, symbolizing his healing powers. He is venerated in both the Roman Catholic and Eastern Orthodox churches, highlighting his importance in Christian history.