St. Bartholomew the Apostle, also known as Nathanael, is one of the twelve apostles of Jesus Christ. He is often associated with the spread of Christianity in the early church and is believed to have preached in various regions, including India and Armenia. His feast day is celebrated on August 24. Traditionally, St. Bartholomew is depicted as a man holding a knife, symbolizing his martyrdom. According to some accounts, he was flayed alive for his faith. He is recognized as the patron saint of tanners and is often invoked for protection against skin diseases.