Paper cash began from promissory notes named "jiaozi" in seventh century China. Jiaozi didn't supplant metallic cash, and were utilized close by the copper coins. The succeeding Yuan Dynasty was the principal government to involve paper cash as the overwhelming flowing medium. In the later course of the administration, confronting gigantic deficiencies of specie to subsidize war and keep up with their standard, they started printing paper cash without limitations, bringing about excessive inflation