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Olduvai Gorge, Site DK-3
Arusha Region, Tanzania
- Olduvai Gorge is a 30-mile rift in East Africa where many old layers of soil and rock are exposed.
- Archaeologists have made major discoveries in the area since research began there in the early 1900s.
- A stone ring uncovered at one dig site in the gorge is a possible remnant of shelter made by archaic humans.
- The stones may have served to prop up the wooden sides of a hut—a building technique still used today by some African communities.
- If the theory is correct, the remains are from the oldest known human-made structure in the world.
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