Before 1850, Switzerland had no single currency. Each canton issued its own coins and notes, making trade cumbersome. The 1848 constitution centralized monetary authority, and in 1850 the Federal Assembly introduced the Swiss franc to replace dozens of regional currencies.
The new franc was initially set at parity with the French franc (backed by 4.5 grams of silver), establishing immediate credibility and easing international trade.
The SNB was established to manage the franc professionally and maintain its stability. This central bank adopted conservative policies that became the foundation of the franc's reputation—avoiding inflation, maintaining substantial reserves, and prioritizing currency stability over short-term economic stimulus.
During the Great Depression, Switzerland initially resisted devaluing the franc while other nations abandoned gold-backed parities. Eventually, economic pressure forced a 30% devaluation in September 1936—the first and only time the Swiss deliberately weakened their currency.
This historical reluctance to devalue reinforced the franc's image as an exceptionally stable store of value.
Switzerland was among the last countries to sever its currency's formal connection to gold. Until 2000, Swiss law required the franc to be at least 40% backed by gold reserves—a unique constraint in modern finance.
A 1999 referendum approved removing this requirement, allowing the SNB greater flexibility. The franc became a pure fiat currency in May 2000, though the SNB still holds approximately 1,040 tonnes of gold (about 6% of total reserves).
The most dramatic recent event came on January 15, 2015. For three years, the SNB had defended a minimum exchange rate of 1.20 CHF per euro, intervening massively in currency markets to prevent excessive franc appreciation.
That Thursday morning, the SNB suddenly abandoned the cap. The franc surged 30% against the euro in minutes before settling at new, higher levels. This "Francogeddon" event shocked markets, bankrupted some currency traders, and demonstrated both the franc's immense safe-haven appeal and the limits of central bank interventions.