Spiritual awakening became more important than sacrifice.
The volume of sediment in the Huang He, mostly yellow loess, raised the river bottom so that it was higher than the surrounding lands, and the river overflowed its banks.
APEX: introduced irrigation to the Yellow River valley.
a peaceful existence
The Bantu left stone and iron farm tools. (Apex)
Rig Veda was composed by a families of seers or rishis.
family was not importsnt