The current not-so-paper money (since both the fabric basis and various kinds of inclusions are present in the banknotes in order to significantly increase the service life of these banknotes) has a very long history of development. It starts from 117 BC, when leather money appeared for the first time on the territory of China, it seems. The current banknotes are the crown of more than two thousandth history of their development. They are not made from air at all. They are provided with material values of the state (except, of course, the dollar) and are guaranteed by the state. This kind of money seems to exist as long as states exist. Of course, banknotes will be further improved.