Four referendums were held in Switzerland during 1949, the first two were held on 22 May on revising article 39 of which third and current federal constitution of Switzerland?
Swiss Federal Constitution The Federal Constitution of the Swiss Confederation (SR 10, German: "Bundesverfassung der Schweizerischen Eidgenossenschaft (BV)" , French: "Constitution fédérale de la Confédération suisse (Cst.)" , Italian: "Costituzione federale della Confederazione Svizzera (Cost.)" , Romansh: ' ) of 18 April 1999 (SR 101"') is the third and current federal constitution of Switzerland. It establishes the "Swiss Confederation" as a federal republic of 26 cantons (states). The document contains a catalogue of individual and popular rights (including the right to call for popular referenda on federal laws and constitutional amendments), delineates the responsibilities of the cantons and the Confederation and establishes the federal authorities of government.
Swiss referendum, 1875 A two-part referendum was held in Switzerland on 23 May 1875. A new federal law establishing and certifying civil status and marriage was narrowly approved, whilst a new federal law on suffrage was narrowly rejected.