Historical Facts about Wind energy
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The ancient Egyptians were the first people known to harness wind energy, using it to power boats up and down the Nile River, the time that it was discovered was as long ago as 5000 B.C.
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The first true windmill that was built was in 2000 B.C. in ancient babylon, this windmill had vanes which are broad blade attached to a rotating axis, so it is able to produce circular motion.