Thomas the Apostle
Thomas was one of Jesus' twelve apostles. He was also known as Didymus, which means "twin." Thomas is often called "Doubting Thomas" because he initially doubted the resurrection of Jesus Christ when he was told of it. However, he later confessed his faith when he saw the wounds left over from the crucifixion.
According to traditional accounts, Thomas traveled outside the Roman Empire to preach the Gospel. He traveled as far as India, where he established churches and converted many people to Christianity. He is considered the patron saint of India and is celebrated on July 3rd.
Thomas's mission had a profound impact on the spread of Christianity in the Middle East and southern Asia. Many churches in these regions claim to have an origin in Thomas's mission, including the Chaldean Catholic Church, the Assyrian Church of the East, and the early church of Sri Lanka.