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Located in the foothills of Mount Elgon near the Kenya-Uganda border, Kakapel Rockshelter is the site where WashU archaeologist Natalie Mueller and her collaborators have uncovered the earliest evidence for plant farming in east Africa. Credit: Steven Goldstein
“There are many narratives about how agriculture began in east Africa, but there’s not a lot of direct evidence of the plants themselves,” said WashU’s Natalie Mueller, an assistant professor of archaeology in Arts & Sciences and co-first author of the new study. The work was conducted at the Kakapel Rockshelter in the Lake Victoria region of Kenya.
The new research reveals a pattern of gradual introductions of different crops that originated from different parts of Africa. “Kakapel Rockshelter is one of the only sites in the region where we can see such a long sequence of occupation by so many diverse communities,” said Steven T. Goldstein, an anthropological archaeologist at the University of Pittsburgh , the other first author of this study.
The exceptional pea is pictured in the paper, and it represents its own little mystery. “The standard peas that we eat in North America were domesticated in the near east,” Mueller said. “They were grown in Egypt and probably ended up in east Africa by traveling down the Nile through Sudan, which is also likely how sorghum ended up in east Africa.
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