1871 -- KNOX V LEE US SUPREME COURT DECISION
This decision was one of several popularly known “Legal Tender Cases” during this period (the others were Hepburn v. Griswold and Julliard v Greenman). The Supreme Court reversed their earlier decision in Hepburn v. Griswold (1870). The decision upheld the Legal Tender Act declaring that making paper money legal tender did not conflict with US Constitution (Article 1). The decision allowed debtors to repay debts in Greenbacks rather than gold or silver.