First mulberry bark Banknote of WORLD

Jiaozi ( 交子) is a form of banknote which appeared around 10th century in the Sichuan capital of Chengdu , China . Most numismatists generally regard it as the first paper money in history, a development of the Chinese Song Dynasty (960 - 1279 AD).

To combat counterfeiting, jiaozi were stamped with multiple Banknote seals.