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OT: R*-M173 back migration
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[QUOTE]Originally posted by Mystery Solver: [QB] [QUOTE]Originally posted by Mystery Solver: [QUOTE]Originally posted by Quetzalcoatl: let's do this; Between 30-20 KYA [b]in East Africa[/b] the precursors of proto-Nilo Saharan and proto-Niger-Congo developed and also a technological advance in hunting/gathering technique or a new social organization developed, which conferred an advantage to these populations. Then, say 12KYA they rapidly expanded over much of Africa displacing and/or absorbing the variety of linguistic families that already occupied the land.[/QUOTE]I hope that you are aware that when you say "let's do this", you're effectively engaging in something that wasn't promoted by the piece you posted, right? And so, you'd essentially be putting words into the author's mouth, no?[/QUOTE]And taking the liberty of demonstrating so,... [b]Originally posted by Quetzalcoatl[/b]: [i]By suggesting that 20 to 30,000 years ago there was a [b]back migration from Asia to Africa[/b] of a population with “...new skills, technology or perhaps social/ritual systems— spread out across Africa and gradually displaced or assimilated many of its resident populations. This hypothesis was first put forward in its modern form by Kingdon (1993), although in the absence of genetic evidence it was little more than speculation. But if the argument is accepted, [b]these early returnees[/b] would be the [b]source of Nilo-Saharan[/b], as this is the oldest of the phyla apart from Khoesan (p. 183).”[/i] ^Your [i]"let's do this"[/i] is totally out of sync with that of the said author. [/QB][/QUOTE]
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