heart, I will create long waterways, rivers and canals, whereby water will flow to quench the thirst of all beings and bring abundance to all that lives. Ninlil, the Sumerian goddess of air and south wind had her home in Dilmun. It is also featured in the Epic of Gilgamesh. However, in the early epic Enmerkar and the Lord of Aratta, the main events, which center on Enmerkar's construction of the ziggurats in Uruk and Eridu, are described as taking place in a world "before Dilmun had yet been settled". Persian Empire From the 6th century BC to the 3rd century BC Bahrain was a pivotal part of the Persian Empire of the Achaemenids, an Iranian dynasty. From the 3rd century BC to the arrival of Islam in the 7th century AD, Bahrain was controlled by two other Iranian dynasties, the Parthians and the Sassanids. By about 130 BC, the Parthian dynasty brought the Persian Gulf under their control and extended their influence as far as Oman; since they needed to control the Persian Gulf trade route, the Parthians established garrisons along the southern coast of the Persian Gulf. In the 3rd century AD, the Sassanids succeeded the Parthians and held the area until the arrival of Islam four centuries later. Ardashir, the first ruler of the Iranian Sassanid dynasty marched to Oman and Bahrain and defeated Sanatruq (or Satiran), probably the Parthian governor of Bahrain. He appointed his son Shapur I as governor of Bahrain. Shapur constructed a new city there and named it Batan Ardashir after his father. At this time, Bahrain incorporated the southern Sassanid province covering the Persian Gulf's southern shore plus the archipelago of Bahrain. The southern province of the Sassanids was subdivided into three districts; Haggar (now al-Hafuf province, Saudi Arabia), Batan Ardashir (now al-Qatif province, Saudi Arabia), and Mishmahig (now Bahrain Island). Tylos Bahrain was referred to by the ancient Greeks as Tylos, the centre of pearl trading, when the Greek admiral, Nearchus, first visited there. Nearchus was serving under Alexander the Great, who overthrew the ruling tribe of Al Hamar. Nearchus is believed to have been the first of Alexander's commanders to visit Bahrain, and he found a verdant land that was part of a wide trading network. He recorded: "That in the island of Tylos, situated in the Persian Gulf, are large plantations of cotton tree, from which are manufactured clothes