| | The haya of tanzania(a testament to ancient Africa's advancement)
Anthropologist Peter Schmidt visited the Haya nine years ago in tanzania and discovered something amazing. over 2,000 years ago the people produces medium carbon stee in pre heated forced draft furnacing. The technology was so sophisticated it wasnt developed again till 19 centuries later. He was led by elders who shwed him a tree where the tool was made. Because of the now inexpensive European made steel they stopped the practice years ago. This topic baffled many scientist.