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Continuing improvements led to the furnace and bellows and provided, for the first time, the power to smelt and forge gold, copper, silver, and lead – native metals found in relatively pure kind in nature. The advantages of copper instruments over stone, bone, and wood tools have been rapidly apparent to early humans, and native copper was most likely used from near the beginning of Neolithic times . Eventually, the working of metals led to the discovery of alloys similar to bronze and brass . The first makes use of of iron alloys similar to metal dates to around 1800 BCE. As the Paleolithic period progressed, dwellings became more sophisticated and extra elaborate; as early as 380 ka, humans have been constructing short-term wooden huts.

  • They recommend that the inevitable results of such a society is to turn out to be evermore technological at