During the Ice Age, the Negev desert of southern Israel received perhaps 30 inches of rainfall per year, when the Canaanite city of Arad was built there and flourished without irrigation, a wide variety of crops and fruit trees grown watered only by rainfall, which is called dry farming, the practice throughout the ancient world until the Ice Age ended circa 1500 b. c. Later Solomon circa 1000 b.c . built a fortress on the hilltop where just below Ad had flourished during the Ice Age, by Solomon’s time fully desert.
