Lucanus grew up in the household of his stepfather, the Roman govenor of Antioch. After studying medicine in Alexandria he became one of the greatest physicians of the ancient world and traveled far and wide through the Mediterranean region healing the sick.
As time went on he learned of the life and death of Christ and saw in Him the God he was seeking. To find out all he could about the life and teachings of Jesus, whom he never saw, Lucanus visited all the places where Jesus had been, questioning everyone--including His mother, Mary--who had known Him or heard Him preach. At last, when he had gathered all information possible, he wrote down what we now know as the Gospel according to St. Luke.