In Swartkans territory, archaeologists discovered charred bone fragments dating back one million years
Analysis of the fragments, which came from a variety of animals, showed that they had been heated to temperatures no higher than those produced in experimental campfires made from branches of white stinkwood, the most common tree around Swartkans
The bone fragments were found in several distinct layers of limestone that contained primitive cutting tools known to have been used by early hominids.