: How a handful of prehistoric geniuses led humanity’s technological revolution #IndiaNEWS For the first few million years of human evolution, technologies changed slowly. Some three million years

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How a handful of prehistoric geniuses led humanity’s technological revolution #IndiaNEWS
For the first few million years of human evolution, technologies changed slowly. Some three million years ago, our ancestors were making chipped stone flakes and crude choppers. Two million years ago, hand-axes. A million years ago, primitive humans sometimes used fire, but with difficulty. Then, 500,000 years ago, technological change accelerated, as spearpoints, firemaking, axes, beads and bows appeared.This technological revolution was not the work of one group of people. Innovations arose in different groups – modern Homo sapiens, primitive sapiens, possibly even Neanderthals – and then spread. Many key inventions were unique: one-offs. Instead of being invented by different people independently, they were discovered once, then shared. That implies a few clever people created many of history’s big inventions.And not all of them were modern humans.Tip of spearIn southern Africa, primitive Homo sapiens first bound stone blades to wooden spears, creating the spearpoint 500,000 years ago. Spearpoints were revolutionary as weaponry, and as the first “composite toolp��8�$���X�[�[����ۙ[�˕H�X��[���XYX�[���YX��Y��[�X�Y��X�H[�HZYX�[��LYX��Y��[�]��K�Y[Y�H�X[��[ˈ]]���Y����H�X��[���ܘYX[H��Yۈ���HۙH[�H�[���[H�^H���HY��X�H�]��K��]�[����R[��و��K[��Y[������[[�����ۙ��X�[YH��[[ۈ[�]��K���XH[�Y��X�H
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