Africans were the very first to engage in exploration before 43, 000 years. In 1964 a hematite mine was present in Swaziland at Bomvu Ridge inside Ngwenya mountain range. Ultimately 300, 000 artifacts were recovered including many stonemade mining tools. Adrian Boshier, among the archaeologists on the site, dated the mine to be 43, 200 yrs. old.