On November 11, 1856, U.S. Patent Np. 16082 issued to Henry Bessemer on the Manufacture of Iron and Steel:

Bessemer’s steel-making process was the most important technique for making steel in the nineteenth century. Bessemer system involved blowing air through molten pig iron to remove the impurities, make steel easier, quicker and cheaper to manufacture. Bessemer also made at least 128 other inventions in the fields of iron, steel and glass. He was knighted for his contribution to science in 1879, and in the same year was made a fellow of the Royal Society.