Yorkshire and the Humber
Stainless steel was invented in 1913 by Harry Brearley of Sheffield, working for Firth Brown Steels (now called Sheffield Forgemasters). SAE 304 stainless steel is the most common stainless steel today, invented by Dr William Herbert Hatfield FRS in 1924 at Firth-Vickers known as Staybrite 18/8, a chromium-nickel steel. Many Swiss watches were mostly made out of Staybrite.
Elwood Haynes Museum
The Elwood Haynes Museum is a museum in the former mansion owned by Elwood Haynes located in Kokomo, Indiana. Haynes was an inventor who is credited with being the first to produce cars commercially in 1894. He also invented stainless steel and stellite. He became a millionaire in 1916 and had the mansion located on south Webster Street built, where he lived until his death in 1925.