an English inventor, whose steel-making process would become the most important technique for making steel in the nineteenth century for almost one century from 1856 to 1950. He also played a significant role in establishing the town of Sheffield as a major industrial centre. Bessemer had been trying to reduce the cost of steel-making for military ordnance, and developed his system for blowing air through molten pig iron to remove the impurities. This made steel easier, quicker and cheaper to manufacture, and revolutionized structural engineering.
