Likewise, if the population consists of equal numbers of males and females, and if the females give birth to 3 children each (and the males 0), then the average birth rate of the population will be 1.5. With these basics we can now consider two simple models of population growth:
For most purposes scrolls have long been superseded by the codex book format, but they are still produced for some ceremonial or religious purposes, notably for the Jewish Torah scroll for use in synagogues.
The use of papyrus as a writing material was not limited solely to Egypt. Papyrus was exported throughout the entire ancient Mediterranean world. The introduction of paper in the ninth century CE signaled the beginning of the end for papyrus as the most important writing material of the ancient world.heir roots were a source of food, medicine, and perfume. Their stems were used to make baskets, floor mats, ropes, clothing, footwear, boats, assorted building materials, and the most important writing material in the ancient world. The use of papyrus in making writing materials dates back to Predynastic times.