[yefragetuwrabrumuy]

History, technically speaking, means recorded human history, so in practical terms, I was talking about stone age through modern Egypt, at least prior to the Aswan dam.

[Carry_Okie]

History, technically speaking, means recorded human history, so in practical terms, I was talking about stone age through modern Egypt, at least prior to the Aswan dam.

I found the file. The capture of the White Nile into what is now the Nile was in approximately 8,000 BC.

That's borderline "history."

My source is:

Subsurface Valleys and Geoarcheology of the Eastern Sahara Revealed by Shuttle RadarAuthor(s): J. F. McCauley, G. G. Schaber, C. S. Breed, M. J. Grolier, C. V. Haynes, B. Issawi, C.Elachi and R. BlomReviewed work(s):Source: Science, New Series, Vol. 218, No. 4576 (Dec. 3, 1982), pp. 1004-1020Published by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/1688710.