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Great Tech Innovations By Africans For Africa and the World


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7 Science Innovations That Are Changing Conservation

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Posted by Philip,Abuja Unlike chocolate chip cookies or tomato soup, the invention of bread can't be pinned down to a single person or people; instead, it evolved to its present state over the course of millennia. Although the modern version of sliced bread is a fairly new invention ( Wonder Bread began marketing  the first sliced loaf of bread in 1930), bread itself is an ancient food with origins dating back more than 22,000 years. In 2004, at an excavation site called Ohalo II, in what is modern-day Israel,  scientists found  22,000-year-old barley grains caught in a grinding stone: the first evidence of humans processing wild cereal grains. But these early "bread"