From 5700-year old Mesopotamian cuneiform tablets, a prophecy has often emerged, based on "liver omens" (soothsaying done by analyzing the shape of a sheep's liver), that expressed a yearning for unity at a time when Babylonia had once again disintegrated into a dozen or more small city-states: "There will come a king of the four corners of the earth."The Jews have spent 3000 years anticipating a…