Editing Pre-Pottery Neolithic B (section)

=== Carbon-14 dating ===
[[File:Map of the spread of Neolithic farming cultures in Europe.jpg|thumb|upright=2|Map of the spread of Neolithic farming cultures from the Near-East to Europe, with dates in year BC]]

The spread of the [[Neolithic]] in Europe was first studied quantitatively in the 1970s, when a sufficient number of 14C age determinations for early Neolithic sites had become available.<ref name="AS1" /> [[Ammerman]] and [[Cavalli-Sforza]] discovered a linear relationship between the age of an Early Neolithic site and its distance from the conventional source in the Near East ([[Jericho]]), thus demonstrating that, on average, the Neolithic spread at a constant speed of about 1&nbsp;km/yr.<ref name="AS1" /> More recent studies confirm these results and yield the speed of 0.6–1.3&nbsp;km/yr at 95% confidence level.<ref name=AS1>Original text from {{Cite journal |last1=Shukurov |first1=Anvar |last2=Sarson |first2=Graeme R. |last3=Gangal |first3=Kavita |date=2014 |title=The Near-Eastern Roots of the Neolithic in South Asia |journal=PLOS ONE |language=en |volume=9 |issue=5 |pages=e95714 |bibcode=2014PLoSO...995714G |doi=10.1371/journal.pone.0095714 |pmc=4012948 |pmid=24806472 |doi-access=free}} [[File:CC-BY icon.svg|50px]] Material was copied from this source, which is available under a [https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International License].</ref>