Parchment took over Papyrus as a carrying
material of written information circa 250 AD. The skins of calves, goats and
sheep are used as a source material. Making leather out of the skins means
changing the fibre structure through the process of tanning it, in order to
keep the flexibilities of the fibre. This process gets purposely avoided when
making parchment. Parchment gains its unique characteristics by thoroughly
drying the stretched skin. It remains slightly elastic yet hardly stretchy,
even after years of being in use it does not rip or break.
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