"In 2000 Kivisild and colleagues found that “even the high castes share more than 80 per cent of their maternal lineages with the lower castes and tribals.” Taking all aspects into consideration, the authors concluded that “there are now enough reasons not only to question a ‘recent Indo‐Aryan invasion’ into India some 4000 BP, but alternatively to consider India as a part of the common gene pool ancestral to the diversity of human maternal lineages in Europe” (Kivisild et al., 2000: 267–271)."