zeusRuler of Heaven and Earth. Zeus, (Jupiter, Ζεύς, Δίας) the great presiding deity of the universe, the ruler of heaven and earth, was regarded by the Greeks, first, as the god of all aërialLearn about Zeus, the supreme ruler of the Greek pantheon, who wielded his thunderbolt and controlled the sky, thunder, and justice. Discover his orins, symbols, role, relationships, worship, and legacy in ancient