These Proto-Italo-Celto-Germanic R1b people had settled around the Alps by 2300 BCE, and judging from the spread of bronze working, reached Iberia by 2250 BCE, Britain by 2100 BCE and Ireland by 2000 BCE. This first wave of R1b assumably carriedR1b-L21lineages in great number, as these...
Lucotte, G. (2015). The Major Y-Chromosome Haplogroup R1b-M269 in West-Europe, Subdivided by the Three SNPs S21/U106, S145/L21 and S28/U152, Shows a Clear Pattern of Geographic Differentiation. Advances in Anthropology, 5, 22-30. http://dx.doi.org/10.4236/aa.2015.51003...