Solomon also built the fortification of Jerusalem known as the "Millo," and the wall of Jerusalem, and repaired the breaches of the city of David,[379] as well as the fortresses and treasure cities to which we have already alluded, and the summer palaces in the region of Lebanon known as "the delights of Solomon."[380] Amid these records of palatial architecture we hear next to nothing of the religious life. He further dazzled his people by an extensive system of foreign commerce. His land-traffic with Arabia familiarised them with spicery (_necoth_), gum tragacanth, frankincense, myrrh, aloes, and cassia and with precious stones of all kinds. From Egypt he obtained horses and chariots. They were brought from Tekoa, by his merchants, and kept by Solomon, or sold at a profit.[381] He found a ready market for them among the Hittite and Aramæan kings. Emulating the Phœnicians, and apparently invading the monopoly of Tyre, he had--if we may take the chronicler literally--a fleet of "ships of Tarshish" which sailed along the coasts of Spain.[382] Above all, he made the daring attempt to establish a fleet of Tarshish-ships at Ezion-Geber, the port of Elath, at the north of the Gulf of Akaba. This fleet sailed down the Red Sea to Ophir--perhaps Abhîra, at the mouth of the Indus--and amazed the simple Hebrews with the sight of gorgeous iridescent peacocks, wrinkled chattering apes, the red and richly scented sandal wood of India, and the large tusks of elephants from which cunning artificers carved the smooth ivory to inlay furniture, thrones, and ultimately even houses, with lustrous ornamentation. Cinnamon came to him from Ceylon, and "sapphires" (_lapis lazuli_) from Babylon.[383] Other services which he rendered to his capital and kingdom were more real and permanent. 1. Jerusalem may have been in part indebted to Solomon for its supply of water. The magnificent springs of pure gushing water at Etam are still called "Solomon's fountains," and it is believed that he used their rocky basins as reservoirs from which to irrigate his garden in the Wady Urtas (Lat., _Hortus_). Etam is two hours distant from Jerusalem, and if Solomon built the aqueduct which once conveyed its water supply to the city he proved himself a genuine benefactor.[384] There was immense need of the "fons perennis aquæ" of which Tacitus speaks for the purifications of the Temple, soiled by the reek and offal of so many holocausts.