For security verification, check for an image of Mount Kinabalu with the numeral 100 in blue and yellow under UV light. *Banknotes originated in China in the seventh century, developing further during the Song dynasty in the eleventh century. **In Europe*, banknotes emerged in the thirteenth century, with Sweden issuing the first ones in 1661. Bank Negara Malaysia (BNM) began issuing Malaysian currency notes in June 1967 in five denominations.

BNM analyzes gelatin’s chemical dataset using the FACS method and Fourier transform infrared (FTIR) spectroscopy. This technique, known as chemometrics fuzzy autocatalytic set (c-FACS), serves various applications, including food authentication.

All four series of Malaysian banknotes, except for RM500 and RM1000, remain legal tender. As a result, you might encounter older series still in circulation, which may confuse visitors to Malaysia.