Editing Iberian Peninsula (section)

===Neolithic===
During the [[Neolithic Europe|Neolithic expansion]], various [[megalithic]] cultures developed in the Iberian Peninsula.<ref>{{cite journal|url=https://www.raco.cat/index.php/Rubricatum/article/viewFile/270071/357640 |title=Redes y expansión del Neolítico en la Península Ibérica |first=Bernat |last=Martí Oliver |year=2012 |access-date=1 September 2018 |journal=Rubricatum. Revista del Museu de Gavà |issue=5 |issn=1135-3791 |pages=549–553 |language=es |publisher=Revistes Catalanes amb Accés Obert}}</ref> An open seas navigation culture from the east Mediterranean, called the [[Cardium pottery|Cardium culture]], also extended its influence to the eastern coasts of the peninsula, possibly as early as the 5th millennium BCE. These people may have had some relation to the subsequent development of the [[Iberians|Iberian civilization]].

As is the case for most of the rest of Southern Europe, the principal ancestral origin of modern Iberians are [[Early European Farmers]] who arrived during the Neolithic. The large predominance of Y-Chromosome Haplogroup R1b, common throughout [[Western Europe]], is testimony to a considerable input from various waves of (predominantly male) [[Western Steppe Herders]] from the [[Pontic–Caspian steppe]] during the Bronze Age. Iberia experienced a significant genetic turnover, with 100% of the paternal ancestry and 40% of the overall ancestry being replaced by peoples with steppe-related ancestry.<ref>{{cite journal |last1=Olalde |first1=Iñigo |last2=Mallick |first2=Swapan |display-authors=1 |date=15 March 2019 |title=The genomic history of the Iberian Peninsula over the past 8000 years |journal=[[Science (journal)|Science]] |publisher=[[American Association for the Advancement of Science]] |volume=363 |issue=6432 |pages=1230–1234 |doi=10.1126/science.aav4040  |pmc=6436108 |pmid=30872528 |bibcode=2019Sci...363.1230O |ref={{harvid|Olalde et al.|2019}}}}</ref>