Radiocarbon dating dates back regular expression for validating date in asp net

The enclosures of Layer III were treated in a special way at the end of their use lives.

The general chronological division for the Early Neolithic was developed in the Southern Levant, by Kathleen Kenyon on the basis of the stratigraphy of Jericho.They clearly show that the site was in use beginning from the PPN A and into the PPN B.A closer examination of the points reveals, however, that characteristic forms of the latest PPN B are missing.She observed a fundamental distinction in the ground plans of buildings – round constructions in the earlier PPN A, rectangular buildings in the later PPN B.She further based her subdivision on differences in the material culture.