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Andrew Carnegie (1835-1919) was a Scottish-American industrialist who led the enormous expansion of the American steel industry in the late 19th century, and was also one of the most important philanthropists of his era. Although some ranchers put notices in newspapers claiming land areas, and joined stockgrowers associations to help enforce their claims, livestock continued to cross range boundaries.
Wire fence in the American West Barbed wire played an important role in the protection of range rights in the U. Fences of smooth wire did not hold stock well, and hedges were difficult to grow and maintain.
Barbed wire's introduction in the West in the 1870s dramatically reduced the cost of enclosing land.
Deere ploughs ahead John Deere was an Illinois blacksmith and manufacturer.This furnace operates at a high temperature by using regenerative preheating of fuel and air for combustion.In 1865, French engineer Pierre-Émile Martin took out a license from Siemens and first applied his regenerative furnace for making steel.Railways open up US In the first moves from rural to urban existence, steel rails, which the foundation of railways, begin to open up the US.In addition, steel begins to replace iron in buildings - steel framing and reinforced concrete ‘curtainwall’ architecture, such as skyscrapers, possible.