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Sir William Wallace's profession was a landholder. He was also most known as one of the leaders of the Scottish Independence.
William Henning
These guys named William Perrie and Tomas Andrews
the bessemer process and the open-heart process(:
It was Sir Henry Bessemer who patented the process in 1856 to take pig iron disturbed by a current of air to turn it directly into steel. Andrew Carnegie, a Scottish immigrant, was able to use the Bessemer process in his steel mills after the civil war to create the largest iron/steel works in America.