Hadad was the great storm-god of the Aramaeans — the same name as the Mesopotamian Adad, but with a distinct Aramaean cult-history that flourished in the lands of Syria from the late Bronze Age through the Roman imperial period. He was the wielder of thunder, the bringer of rain, the patron of vegetation, the divine king who ruled from his temple-mountain. His name means simply 'the Thunderer,' and he was one of the most widely worshipped of all Levantine deities, with cult-centers from Damascus to Aleppo to Hamath to the great oracle-shrine at Heliopolis (modern Baalbek) in the Beqaa Valley.
His iconography was distinctive: a bearded warrior wearing a tall conical hat (the polos of the eastern gods), holding a thunderbolt or a battle-axe in one hand and the reins of a chariot drawn by bulls in the other; his feet rested upon two bulls, the bull being his sacred animal. The bulls have a long history in Levantine religion — the storm-god of the Hittite-Canaanite world had ridden a bull-chariot for two thousand years before Hadad's Roman-imperial flowering, and the iconography of the god mounted upon his bull was one of the most stable elements of Near Eastern religious art.
His great Roman-period sanctuary at Heliopolis was one of the wonders of the eastern empire. Iuppiter Heliopolitanus — the Roman name for Hadad in this manifestation, with Iuppiter standing in for the Greek Zeus, with whom Hadad had been identified in the Hellenistic period — had his temple built (or rebuilt) under Augustus and his successors, and the gigantic ruins of the precinct can still be seen at Baalbek today: the six surviving columns of his temple are 22 metres high, the largest classical temple-columns ever erected. Around him in the precinct stood the temples of his consort Atargatis (treated below) and the youthful divine son Mercury-Hermes; the three together formed the Heliopolitan triad, a Syrian transposition of the older Canaanite trinity of father-mother-son that had flourished at Ugarit fifteen hundred years earlier.
Hadad's cult was carried throughout the Roman empire by Syrian merchants, soldiers, and slaves; dedications to Iuppiter Heliopolitanus have been found in Italy, in Britain, in Germany, in North Africa. The emperor Heliogabalus (218-222 of our era), who had been the priest of the related sun-god Elagabal of Emesa before becoming emperor, attempted to make the Syrian sun-cult the central religion of the Roman empire — an attempt that failed and that contributed to his assassination — but the episode demonstrates the depth of Syrian religious influence at Rome by the third century of our era. The Hadad-cult survived in attenuated form into the late Roman empire, was suppressed by Theodosius and his successors, and was finally eliminated by the Arab conquest of Syria in 636 of our era; the temple at Baalbek had become a fortress by then, with the Christian basilica that had been built within the precinct itself converted to other uses.











