Every advance of civilization brought it with it, that more and more numbers were needed. If someone owned a flock, he wanted to know, how many animals there were. If you wanted to build a pyramid, one had to know, how many stones were needed for this. Calculations had to be made when trading in the markets and from country to country. And when people learned it, to calculate with their numbers, could they time, distances, Calculate areas and contents. Through the use of numerals, man's knowledge and skills increased, to use nature for his own purposes.