"With the development of agriculture, humans began to radically transform
the environments in which they lived. A growing portion of humans became
sedentary cultivators who cleared the lands around their settlements and
controlled the plants that grew and the animals that grazed on them. The
greater presence of humans was also apparent in the steadily growing size and
numbers of settlements. These were found both in areas that they had long
inhabited and in new regions that farming allowed them to settle. This great
increase in the number of sedentary farmers is primarily responsible for the
leap in human population during the Neolithic transition. For tens of
thousands of years before agriculture was developed, the total number of
humans had fluctuated between an estimated five and eight million persons. By
4000 B.C., after four or five millennia of farming, their number had risen to
60 or 70 million. Hunting-and-gathering bands managed to subsist in the zones
between cultivated areas and continued to war and trade with sedentary
peoples. But villages and cultivated fields became the dominant features of
human habitation over much of the globe."
I think that the this population explosion is relative to the mushrooming of the R1b Y-lines after the birth of P311. If this happened in western Europe it would give a TMRCA of 6000 for P311. If it is relative to P311 in the Middle east then the TMRCA would be 6000-10,000 ybp.
the environments in which they lived. A growing portion of humans became
sedentary cultivators who cleared the lands around their settlements and
controlled the plants that grew and the animals that grazed on them. The
greater presence of humans was also apparent in the steadily growing size and
numbers of settlements. These were found both in areas that they had long
inhabited and in new regions that farming allowed them to settle. This great
increase in the number of sedentary farmers is primarily responsible for the
leap in human population during the Neolithic transition. For tens of
thousands of years before agriculture was developed, the total number of
humans had fluctuated between an estimated five and eight million persons. By
4000 B.C., after four or five millennia of farming, their number had risen to
60 or 70 million. Hunting-and-gathering bands managed to subsist in the zones
between cultivated areas and continued to war and trade with sedentary
peoples. But villages and cultivated fields became the dominant features of
human habitation over much of the globe."
I think that the this population explosion is relative to the mushrooming of the R1b Y-lines after the birth of P311. If this happened in western Europe it would give a TMRCA of 6000 for P311. If it is relative to P311 in the Middle east then the TMRCA would be 6000-10,000 ybp.
Comment