History of Switzerland
Switzerland's most important exports during the war were precision machine tools, watches, jewel bearings (used in bombsights), electricity, and dairy products. During World War Two, the Swiss franc was the only remaining major freely convertible currency in the world, and both the Allies and the Germans sold large amounts of gold to the Swiss National Bank. Between 1940 and 1945, the German Reichsbank sold 1.3 billion francs worth of gold to Swiss Banks in exchange for Swiss francs and other foreign currency.
Switzerland as a federal state
Some of the first acts of the new Federal Assembly were to unify and standardize daily life in the country. In 1849 a uniform postal service was established. In 1850 a single currency was imposed to replace the cantonal currencies, while all customs between cantons were abolished. In 1851 the telegraph was organized, while all weights and measures were unified. In 1868 the metric system was allowed and in 1875 declared obligatory and universal. In 1854 roads and canals taken in hand were taken under federal control. The Federal Polytechnic wasn't opened until 1855 in Zurich, though the Federal university authorized by the new constitution has not yet been set up.