Mohand:
regarding the movement of E3b's from Ethiopia around 13K years ago, the source is the following paper by Cruciani:
http://www.familytreedna.com/pdf/hape3b.pdf
Regarding the origin of Afro Asiatic languages, josh will know. But anyway, I think the main point is that Ethiopia has the largest number and variety of diverse Afro-Asiatic languages, so it is a likely place of origin. Afro Asiatic languages are a diverse group, comprising Semitic languages, Ku****ic (sudan), Berber and coptic/ancient egyptian. Strictly semitic languages include Arabic, Hebrew, and ancient Akkadian (=Babylon) and Aramaic. Most likely, this Semitic group arose in the Middle East.
The following genetics paper talks about Ethiopia and has a brief discussion on Afro-Asiatic languages on page 753 (although, being a genetics paper, it may not the best for linguistics):
http://www.journals.uchicago.edu/AJH.../41578.web.pdf
cacio
regarding the movement of E3b's from Ethiopia around 13K years ago, the source is the following paper by Cruciani:
http://www.familytreedna.com/pdf/hape3b.pdf
Regarding the origin of Afro Asiatic languages, josh will know. But anyway, I think the main point is that Ethiopia has the largest number and variety of diverse Afro-Asiatic languages, so it is a likely place of origin. Afro Asiatic languages are a diverse group, comprising Semitic languages, Ku****ic (sudan), Berber and coptic/ancient egyptian. Strictly semitic languages include Arabic, Hebrew, and ancient Akkadian (=Babylon) and Aramaic. Most likely, this Semitic group arose in the Middle East.
The following genetics paper talks about Ethiopia and has a brief discussion on Afro-Asiatic languages on page 753 (although, being a genetics paper, it may not the best for linguistics):
http://www.journals.uchicago.edu/AJH.../41578.web.pdf
cacio
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