Settlements
PPNA archaeological sites are much larger than those of the preceding Natufian hunter-gatherer culture, and contain traces of communal structures, such as the famous tower of Jericho. PPNA settlements are characterized by round, semi-subterranean houses with stone foundations and terrazzo-floors. The upper walls were constructed of unbaked clay mudbricks with plano-convex cross-sections. The hearths were small, and covered with cobbles. Heated rocks were used in cooking, which led to an accumulation of fire-cracked rock in the buildings, and almost every settlement contained storage bins made of either stones or mud-brick.
One of the most notable PPNA settlements is Jericho, thought to be the world's first town (c 8000 BC). stone and iron age communities have been dated as far back as 12000bc). The PPNA town contained a population of up to 2000-3000 people, and was protected by a massive stone wall and tower. There is much debate over the function of the wall, for there is no evidence of any serious warfare at this time. One possibility is the wall was built to protect the salt resources of Jericho.
Read more about this topic: Pre-Pottery Neolithic A
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“That those tribes [the Sac and Fox Indians] cannot exist surrounded by our settlements and in continual contact with our citizens is certain. They have neither the intelligence, the industry, the moral habits, nor the desire of improvement which are essential to any favorable change in their condition.”
—Andrew Jackson (1767–1845)