This illustration dates to around 1898 and depicts the sculpture of Mithras (also spelled Mithra) that is housed in the Vatican. Mithras is sometimes known as the bull slaughterer and bull slayer. Followers of Mithras believed that the world was created from the blood of a bull, so the symbolism here is that of Mithras slitting the throat of the bull. The serpent represent evil forces in typical depictions of the Mithras story. Mithras was a deity in the Persian religion known as Mithraism. He was worshiped as the god of the sun, justice, and war. He later became a god worshiped in Rome and in many parts of the Roman empire. He was honored as the patron of loyalty to the emperor. Date is around second to third century A.D.