High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Sibudu Cave is a sandstone cliff cave in northern KwaZulu-Natal, South Africa. It is an important Middle Stone Age site that has been occupied with some gaps between 77 ka to 38 ka. In it evidence has been found of some of the earliest modern human technology including the earliest bone arrow (61ka), needle (61 ka), and (72 ka) use of heat treated mixed compound gluing. The complexity of the skill needed to create and process such glues has been argued to provide evidence of continuity between modern human cognition and that of early humans around 70,000 years ago.