Skin has been a very useful raw material since the beginning of humanity . Thanks to it, man was able to survive the most extreme periods of climate.

During the Stone Age , the culture of leather working began. It was then that clothing, stores and supports for religious representations began to be produced. Later, by “accident” primitive man learns how to preserve it ; near the sea with curing by salting or curing by drying in the sun, and when the fire took over, curing by smoking was carried out.

In natural laboratories with the fermentation of tannins that destroy hair keratin, the skin is transformed into leather . With the discovery of bronze and later iron, other processes appeared that gave rise to an endless number of useful objects for working on the skin .