What is papyrus?

Papyrus is an early form of paper made from the pith of the papyrus plant, Cyperus papyrus, a wetland sedge that grows usually 5-9 feet but some have reached to 5 meters (15 ft) in height and was once abundant in the Nile Delta of Egypt. Papyrus is first known to have been used in ancient Egypt (at least as far back as the First dynasty), but it was also widely used throughout the Mediterranean region, as well as inland parts of Europe and south-west Asia