One of the features of the ancient civilization in Yemen was a huge dam...

One of the features of the ancient civilization in Yemen was a huge dam, called Ma'rib.[^15] Being constructed in accordance with rigorous geometrical calculations, this dam attests to a profound knowledge on the part of the engineers and constructors of this dam. This dam could make agriculture prosper in that area.[^16] Besides agriculture, the Yemenis were engaged in trade.

The Sabaeans were trade agents between the east and the west because in those days the country of Yemen rested among several civilized countries. The Indian traders used to take their merchandise to Yemen and Hazramawt through the Indian Ocean and then the Yemeni traders used to take them to Ethiopia, Egypt, Phoenicia, Palestine, The cities of Madyan, Adwam, Al-`Amaliqah and the western lands and the Meccan Arabs used to take the same…