Currency — Paper

: Governments in North America and India (late 18th century) used paper currency to facilitate trade and taxation. III. Security and Manufacturing

: Despite the rapid rise of digital payments, paper currency remains a critical tool for financial inclusion, privacy, and systemic resilience. II. Historical Evolution paper currency

: Advanced security paper often contains watermarks, security threads (some with colour-shifting properties), and fluorescent fibres visible only under UV light. Printing Techniques : : Governments in North America and India (late

: Promissory notes originated in 7th-century China during the Tang Dynasty to avoid carrying heavy metal coins. security threads (some with colour-shifting properties)