THE FOUR HORSEMEN
The Four Horsemen of the Apocalypse are described in the last book of the New Testament of the Bible, called the Book of Revelation of Jesus Christ to John of Patmos, at 6:1-8. The chapter tells of a book or scroll in God’s right hand that is sealed with seven seals. The Lamb of God opens the first four of the seven seals, which summons four beings that ride out on white, red, black, and pale horses.
Though theologians and popular culture differ on the first Horseman, the four riders are often seen as symbolizing Conquest or Pestilence (and less frequently, the Christ or the Antichrist), War, Famine, and Death. The Christian apocalyptic vision is that the Four Horsemen are to set a divine apocalypse upon the world as harbingers of the Last Judgment.
One reading ties the Four Horsemen to the history of the Roman Empire subsequent to the era in which the Book of Revelation was written. That is, they are a symbolic prophecy of the subsequent history of the Empire.