How can we interpret this?
vCushitic pastoralists formerly spread down through Central Africa, at least as far as Zambia/Northern Zimbabwe, probably intermixed with hunter-gatherers
vThey would have herded fat-tailed sheep and longhorn taurine cattle and known how to make pottery
vKhwe speakers would have spread at least to the borders of Tanzania, with click speakers possibly right up to Somalia
vSome time about 2000 years ago these two groups encountered one another and the pottery skills and livestock breeds were passed between them along with associated material culture such as mat huts, sandals and butter-making equipment.
vA diverse pastoral culture would have existed in this intermediate zone, observed by San hunter-gatherers who both traded with the herders and painted their animals.