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→Later Developments
==Later Developments==
While steel was already around soon after iron working developed, it took some time before mastering the technology improved. In the Medieval Islamic world, blast furnaces were developed by the 10-11th centuries. These allowed more industrial production and better production of iron. New steel production from China and India, which developed by the 5th century CE, had now spread to other areas of the Old World. Problems of having relatively brittle iron were now being solved. In effect, previously, the quality of the iron ore affected the quality of weapons and tools. Now, new production techniques that enabled carbonized iron to be more easily made, and thus creating steel, allowed more rapid spread of better weapons and tools.
==Deep Impact of Iron==
