Throughout all these years of recorded history, the black african has invented nothing. Not a written language, weaved cloth, a calendar,a plow, a road, a bridge, a railway, a ship, a system of measurement, oreven the wheel. There is no record he has ever cultivated a single crop or domesticated a single animal for his own use. His only mean of transporting goods was on the top of his hard burry head. For shelter he never progressed beyond the common mudhut, which could also be constructed by a beaver or muskrat.