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 referendums, 1975 Nine referendums were held in Switzerland in 1975. The first was held on 2 March on an amendment to the Swiss Federal Constitution on the article on the economic cycle. Although it was approved by a majority of voters, it did not receive the support of a majority of cantons (the result was an 11–11 tie), so was rejected. The next five were held on 8 June on protecting currency (approved), financing the national road network (approved), amending the general tariff (rejected), increasing taxes the following year (approved) and restricting federal expenditure (approved). The final three were held on 7 December on a constitutional amendment on the right to residence and welfare benefits (approved), a constitutional amendment on water management (approved) and a federal law on the import and export of agricultural goods (approved).