Isaac Newton was one of the greatest men in the history of scientists. He bore in a small village of Wootsphore in England. His father was a poor farmer. When the boy was fourteen, his father died. Newton left school and helped his mother on the farm. But the boy didn't like farming , he was font of the poetry and mathematics. So Newton was sent to school. After he left school, Newton studied at Cambridge University. He lectured on mathematics at Cambridge University after graduating. His greatest discovery was the law of gravitation