Pre-Pottery Neolithic B (PPNB) is a division of the Neolithic developed by Dame Kathleen Kenyon during her archaeological excavations at Jericho in the southern Levant region. The culture of this period differs from that of the earlier Pre-Pottery Neolithic A period in that people living during this period began to depend more heavily upon domesticated animals to supplement their earlier mixed agrarian and hunter-gatherer diet. In addition the flint tool kit of the period is new and quite dispar… (More on Ppnb)