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Post by Charlie Bass on Jul 3, 2019 10:32:08 GMT -5
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Post by zarahan on Jul 3, 2019 20:50:39 GMT -5
^^THis article tracks somewhat with the climatic pump theory, though in a broader way- that is- fluctuating climate/climate change pushed populations towards the more fertile Nile Valley when the river was in a stable period. THe notion of a mechanical "pump" has fallen out of favor but climate change making populations move about basically tracks with the same general principle.
With the rapid aridification of the desert after 5300 BC the amount of occupational sites decreases in the Western Desert, but the findings of “desert black-topped” potsherds and Tasian-like beakers among the local desert traditions may indicate that the Predy-nastic dwellers were the descendants of desert groups.
^^This too tracks with earlier research. Also making up the predynastic would be movement from the Sudan. But much of this area too is desert, so "desert groups" covers a wide range.
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Post by zarahan on May 3, 2020 19:33:37 GMT -5
.The migrational shift of desert dwellers into the Nile Valley around 5000BC is only one, if a very drastic, development which can be linked to the changing environmental conditions. Climate, therefore, can be described as the true “motor” that stands behind the general development of contacts between the desert and the Nile Valley.
Which tracks with Kuper and Krolein's 2006 article on the Sahara- as the "Motor" of Africa's evolution.
Kuper R1, Kröpelin S.. Climate-controlled Holocene occupation in the Sahara: motor of Africa's evolution. Science. 2006 Aug 11;313(5788):803-7. Epub 2006 Jul 20.
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Post by Tukuler al~Takruri on May 3, 2020 20:19:46 GMT -5
The West African Monsoon is the pump. The pump's motor is the Earth's Wobble.
The Sahara is no more than a bowl, trough, and sponge. It puddles, channels, and soaks up the northward advancing Monsoon rain waters. Those lakes and rivers get wrung out dry upon the W Afr Monsoon's retreat south. That wringing's residue are some wadis, oases, and deep underground aquifers.
Sahara is no pro-active agent. It's just a passive reactant.
The so-called "Green Sahara" is but one manifestation of the African Humid Period, beefed up because the Sahara is much more closer to Europe than the Rainforests, the Great Lakes, the Veldt, and the Kalahari regions mostly overlooked by European scholarship of Africa. Why? It's a prehistory so unrelated to the beginnings of what they call Western --white European-- civilization.
The Grassland moved northward from equatorial Africa. Central and southern Peoples followed the expanding Grasslands they always knew, lived in, and depended on. Coastal and northern Peoples explored the new phenomena and learned the ways of Grassland and Aquatic economies.
Monsoon's retreat signaled Grassland shrinkage and cessation of Aquatic resource in that part of Africa's northern hemisphere. Both People's had little choice but to follow declining fertile landscapes or fall back to lakes and rivers their ancestors knew of as the African Humid Period ended. Else stay put and face the unknown. Some of both Peoples did just that, coming to adapt to previously unlivable desert conditions as was never done before in the history of humankind.
The West African Monsoon drove Africa's evolution that happened all over the entire continent not just Tropical North Africa to Mediterranean Africa alone, the sphere of Europe's first contact, so important to Europeans.
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Post by zarahan on May 5, 2020 0:13:45 GMT -5
Yours is a better description of the process- a changing climate pushing or pulling people into one zone or another. Like you say the monsoon's retreat pushed people to the lakes and rivers that remained- hence the development of the Nile Valley cultures that ultimately coalesced into Badarian, Kemet, Nubia and others.
What good sources do you have on the monsoon system, and how did it impact West Africa/Sahel region where say the Nok cultures were to develop?
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Post by Tukuler al~Takruri on May 5, 2020 10:36:37 GMT -5
Maybe it's better, maybe it ain't. It's just my assessment after a decade of research, watching & reading too many sources to list here. It's just my interpretation of uncovered facts and remembering Euros' overriding agenda to co-opt everything in de wereld into their "weltanshauung" since exploration and colonialism. Beside that series of Following Fertile Landscape maps I've posted www.egyptsearch.com/forums/ultimatebb.cgi?ubb=get_topic;f=8;t=008357;p=1 (2013; imgs rescinded) www.egyptsearch.com/forums/ultimatebb.cgi?ubb=get_topic;f=15;t=011212;p=1 (2016; imgs rescinded) egyptsearchreloaded.proboards.com/thread/2994 (2019; imgs still intact) egyptsearchreloaded.proboards.com/thread/2999 (2019; intact imgs) perhaps this vid blew up the house when igniting trees while the stove was leaking gas) But what about the Sudani Middle Nile Valley cultures (i.e., Khartoumian) expanding and diversifying into the Lower Nile Valley noted here and here? Yours is a better description of the process- a changing climate pushing or pulling people into one zone or another. Like you say the monsoon's retreat pushed people to the lakes and rivers that remained- hence the development of the Nile Valley cultures that ultimately coalesced into Badarian, Kemet, Nubia and others. What good sources do you have on the monsoon system, and how did it impact West Africa/Sahel region where say the Nok cultures were to develop? Also, if ya wanna be exhaustive, ESR's own internal search feature got stuff under the phrase African Humid Period.
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