berun
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Now seriously, looking at Indus Valley Civilization I found this interesting map:
View attachment 10037
if it's correct the pre-Indus sites were all west of the Indus, in the mountains, and that would make sense to me: the Indus basin was mainly desertical, not allowing rainfed agriculture, moreover in its east you find the Thar desert; so it was a major obstacle for an eastward colonization of Zagros' farmers.
In fact colonizing Asia was not like colonizing Europe, in Europe you can have a farming plot almost everywhere getting anual crops from it, but from Kurdistan to the south early farmers only had two big rivers and a big desert impossible to farm except if you have much people as to open irrigation channels geting water from the main rivers. To the east farmers had some better conditions: Iran, Pakistan, Afganistan and Central Asia are arid regions with anual precipitation below 300 mm (wheat and barley need 400 mm in its growing period), so farmers only had the possibility to colonize the wettest places in the piedmonts as well as oasis.
View attachment 10038
View attachment 10039
View attachment 10040
I like to thing that major domestications (wheat, barley, cows, sheeps, goats) are related to specific haplos (R1b, L, J1, J2, E...); also it would be possible that under the conditions seen there would be three main colonizations: pioneer herders (goat herders as can eat everything), dry farmers, and irrigation system farmers, being the last wave the most numerous, coming provably from an experienced and populous culture of Iraq (Uruk, Ubaid). Also as the farming land is scattered, a lot of genetic drift and bottlenecks are expected.
The first map contains an interesting image: the neolithic sites are in actual Iranian languages zone, the Indus and more recent sites are in Indic languages zone.
The BMAC culture and Indus Valey Culture thrived by creating irrigation channels, expanding farming land and population. The IVC died after a series of droughts, so that people went east, and maybe in such migration the Indic languages spread east also; maybe there were steppe/cow herders profiting the available new grazing land by irrigation system, or they were a military elite that profited the slow diying process of the IVC. Another point would be to thing that the farmers mastering irrigation were already IE, but even such idea clashes in my mind.
View attachment 10037
if it's correct the pre-Indus sites were all west of the Indus, in the mountains, and that would make sense to me: the Indus basin was mainly desertical, not allowing rainfed agriculture, moreover in its east you find the Thar desert; so it was a major obstacle for an eastward colonization of Zagros' farmers.
In fact colonizing Asia was not like colonizing Europe, in Europe you can have a farming plot almost everywhere getting anual crops from it, but from Kurdistan to the south early farmers only had two big rivers and a big desert impossible to farm except if you have much people as to open irrigation channels geting water from the main rivers. To the east farmers had some better conditions: Iran, Pakistan, Afganistan and Central Asia are arid regions with anual precipitation below 300 mm (wheat and barley need 400 mm in its growing period), so farmers only had the possibility to colonize the wettest places in the piedmonts as well as oasis.
View attachment 10038
View attachment 10039
View attachment 10040
I like to thing that major domestications (wheat, barley, cows, sheeps, goats) are related to specific haplos (R1b, L, J1, J2, E...); also it would be possible that under the conditions seen there would be three main colonizations: pioneer herders (goat herders as can eat everything), dry farmers, and irrigation system farmers, being the last wave the most numerous, coming provably from an experienced and populous culture of Iraq (Uruk, Ubaid). Also as the farming land is scattered, a lot of genetic drift and bottlenecks are expected.
The first map contains an interesting image: the neolithic sites are in actual Iranian languages zone, the Indus and more recent sites are in Indic languages zone.
The BMAC culture and Indus Valey Culture thrived by creating irrigation channels, expanding farming land and population. The IVC died after a series of droughts, so that people went east, and maybe in such migration the Indic languages spread east also; maybe there were steppe/cow herders profiting the available new grazing land by irrigation system, or they were a military elite that profited the slow diying process of the IVC. Another point would be to thing that the farmers mastering irrigation were already IE, but even such idea clashes in my mind.