<P> The Wall of Jericho was a Pre-Pottery Neolithic A (PPNA) defensive or flood protection wall suggested to date to approximately 8000 BCE . If interpreted as an "urban fortification", the Wall of Jericho is the oldest city wall discovered by archaeologists anywhere in the world . It is built of undressed stones and is located at the archaeological mound known as Tell es - Sultan, in the city of Jericho on the West Bank . </P> <P> The topic of this article is the unique Neolithic - age stone wall, the earliest one of its kind . Other walls, such as contemporary house walls, or later, Bronze and Iron Age city walls, are only mentioned for the sake of context . </P>

What was the purpose of the wall of jericho