Humans Have Been Taking Out Insurance Policies for at Least 30,000 Years

[Judi Lynn]

A study of beads made from ostrich eggshells suggests the humans of the Kalahari Desert region formed social networks to help each other



Middle and Later Stone Age beads of ostrich eggshell from highland Lesotho, southern Africa. (Middle and Later Stone Age beads of ostrich eggshell from highland Lesotho, southern Africa.)


Archaeologists have documented, in the Kalahari and elsewhere, the deep history of long-distance movements of utilitarian items such as stone tools and ochre pigment, which can be used as a sunscreen or a way to preserve hides. In East Africa, researchers have recorded instances of obsidian tools being carried more than 100 miles (160 km) as early as 200,000 years ago.

"When you have stone or ochre, you don't really know that this exchange is representing social ties," says Polly Wiessner, the anthropologist who first documented the exchange partnerships among the Ju/’hoãnsi people in the Kalahari Desert in the 1970s. "However, these beads are symbolic. This is one of our only sources for such early times to understand social relations."

Wiessner suspects that the closer-range ties—the ones around 60 miles—that Stewart and his colleagues found indeed represent people who pooled risk and shared resources. However, she says, it’s possible that the few examples of beads that came from further away could have been acquired through trade networks.

"Often at the edge of risk-sharing systems, feeder routes extend to bring in goods from other areas by trade or barter and so the recipient does not know people at the source," says Wiessner, who wasn't involved in Stewart’s study but reviewed it for the journal. "It doesn't mean people had face-to-face contact from that far away."

More:
https://www.smithsonianmag.com/science-nature/ostrich-beads-lesotho-social-networks-180974368/

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