270,000 years ago (https://t.co/pXC30m1Fid) in central Africa, hand-axes (https://t.co/NnZsEp9kVh) began to disappear, replaced by a new technology, the core-axe (https://t.co/IhXA5lK2Zx). Core-axes looked like small, fat hand-axes, but were radically d…
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 (https://t.co/0LfvYgo12O). Two million years ago, hand-axes (https://t.co/Nn…
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 (https://t.co/0LfvYg6pEe). Two million years ago, hand-axes (https://t.co/Nn…
Handaxes go back 1.75m years. That's 1.5m years for the same shape - all-time design record! http://t.co/rkOlCqF