 pre-pottery neolithic a (ppna) denotes the first stage in early levantine and anatolian neolithic culture, dating around 8000 to 7000 bc.  archaeological remains are located in the levantine and upper mesopotamian region of the fertile crescent. the time period is characterized by tiny circular mud brick dwellings, the cultivation of crops, the hunting of wild game, and unique burial customs in which bodies were buried below the floors of dwellings. the pre-pottery neolithic a and the following pre-pottery neolithic b (ppnb) were originally defined by kathleen kenyon in the type site of jericho (palestine). during this time, pottery was not in use yet. they precede the ceramic neolithic (yarmukian). ppna succeeds the natufian culture of the epipaleolithic (mesolithic). ==settlements== thumb|100px|left|el khiam point, schematic drawing 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). the ppna town contained a population of up to 2,000-3,000 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."jericho", encyclopÃ¦dia britannica it has also been proposed that the tower caught the shadow of the largest nearby mountain on summer solstice in order t
Archaeology_of_the_Near_East Neolithic