Phys.org

Iron Age Botswana site sourced copper across southern Africa—but tin from just one place

Iron Age Botswana site sourced copper across southern Africa—but tin from just one placeWorldPing

Around 700 years ago, people living on hilltop settlements on the edge of the Kalahari wore beads, bangles and clips made from metal traded across the southern half of the African continent.

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Brief by WorldPing · Original reporting by MIT Tech Review