african slave trade agriculture albanians american journal of human genetics anatolian hypothesis ancient dna archaeogenetics of the near east archaeology archaic homo sapiens atlantic europe aurignacian austria balkans baltic sea basque people berber people black sea black people brigantes british islands bronze age brutus of troy bryan sykes canarian people caucasoid celts central asia central europe chromosome comparative linguistics dna danish people demic diffusion demography digital object identifier domestication of the horse eastern europe england europe european ethnic groups father finno-ugric languages genetic distance genetics germans germany greece guanches haplogroup history of the roma people holocene glacial retreat horn of africa human genetic variation human mitochondrial dna haplogroup iberian peninsula immigration to europe indian subcontinent indo-european languages ireland italy jutland kurgan kurgan hypothesis linkage disequilibrium locus luigi luca cavalli-sforza mesolithic middle ages mitochondrial dna moors near east neolithic neolithic europe neolithic revolution netherlands north africa poles population population genetics portugal portuguese people prehistory proto-indo-europeans sardinia scandinavia scotland sicily single nucleotide polymorphism southern europe spain spanish people stephen oppenheimer sub-saharan africa sub-saharan dna admixture in europe subclade the seven daughters of eve united kingdom university of oulu upper paleolithic wales western europe white people