6. The Pre-Pottery Neolithic A (PPNA) Period, Circa 8500 – 7500 BC

This period from around 8500 to 7500 BC witnessed significant transformations as communities transitioned from nomadic lifestyles to permanent settlements. At Tell es-Sultan, inhabitants built circular mud-brick houses, developed early agricultural practices, and cultivated cereals like emmer wheat and barley. One of the most remarkable structures from this era is a defensive wall.
By 8000 BC, inhabitants had constructed a massive stone wall, about 12 feet high and 6 feet thick, that encircled the settlement. That is the oldest known city defensive wall. That wall, accompanied by a 28-foot-tall stone tower, represents one of the earliest known examples of urban fortification, and highlights the community’s organizational capabilities and concern for protection.



