who developed the first paper for the human beings
History of writing In Egypt the principal writing material was of quite a different sort. Wooden tablets are found pictured on the monuments; but the material which was in common use, even from very ancient times, was the papyrus. This reed, found chiefly in Lower Egypt, had various economic means for writing, the pith was taken out, and divided by a pointed instrument into the thin pieces of which it is composed; it was then flattened by pressure, and the strips glued together, other strips being placed at right angles to them, so that a roll of any length might be manufactured. Writing seems to have become more widespread with the invention of papyrus in Egypt. That this material was in use in Egypt from a very early period is evidenced by still existing papyrus of the earliest Theban dynasties. As the papyrus, being in great demand, and exported to all parts of the world, became very costly, other materials were often used instead of it, among which is mentioned leather, a few leather mills of an early period having been found in the tombs.[32] Parchment, using sheepskins left after the wool was removed for cloth, was sometimes cheaper than papyrus, which had to be imported outside Egypt. With the invention of wood-pulp paper, the cost of writing material began a steady decline.