By 7000 B.C. Jericho had developed into a large settlement which may have contained as many as two thousand individuals, and was defended by a substantial wall. And its Walls as drawn by ABR staff Artist Gene Fackler based on archaeological evidence. Houses were found between the upper and lower city walls, as was apparently the case with Rahab’s house (Jos 2:15). The lower mud brick wall was built on top of a stone retaining wall which held in place a massive earthen embankment