sentences:  The former seems incontestable now since a 2017 study showed a major genetic shift in late Neolithic/early Bronze Age Britain, so that more than 90% of Britain's Neolithic gene pool was replaced with the coming of a people genetically similar to the Beaker people of the lower-Rhine area.Several regions of origin have been postulated for the Beaker culture, notably the Iberian peninsula, the Netherlands and Central Europe.Part of the Beaker culture brought the skill of refining metal to Great Britain.