On this day, 127 years ago, on March 15, 1898 (February 23, 1898 in the lunar calendar), British metallurgist Henry Bessemer passed away. Henry Bessemer (1813 - 1898) British inventor. One of the inventors of the converter steelmaking method. He worked in a casting workshop run by his father since childhood and was familiar with metal processing and manufacturing; later, he studied mechanical design in London. Bessemer's original invention was the technology of casting metal handicrafts, and he improved the mold for printing machines and the gold brass powder for paints. In the 1850s, he noticed that when melting iron in a furnace equipped with blowing equipment, air could remove carbon from the molten iron and refine wrought iron or mild steel. So he used air pipes to blow the molten iron in the crucible, which later developed into Bessemer converter steelmaking, which was patented in 1856. The birth of the Bessemer method marked the evolution from the "Iron Age" to the "Steel Age" of the early industrial revolution. This has epoch-making significance in the history of metallurgical development. Bessemer was chairman of the British Steel Society and was elected a fellow of the Royal Society in 1879. Henry Bessemer passed away on March 15, 1898. Structural diagram of the Bessemer converter at the steel plant opened by Bessemer in Sherfield, England