1850
An introduction of the Swiss franc
1865
Accession to the Latin Monetary Union, review the local currency relative to 4.5g silver or gold 0.290322g
1936
30% devaluation of the franc during the Great Depression. Gold coins lose its function as a means of payment (gold coin)
1945
Bretton Woods ties the franc and the U.S. dollar ($1 = 4.30521 francs respectively. 1 franc = 0.206418g gold, 1949 $1 = 4,375 francs respectively 1 franc = 0.203125g Gold)
2000
The constitutional amendment abolished the minimalistic gold backing of 40%
2005
The SNB reduced its gold reserves to below 20% of your plants
2011
The SNB set the lower bound of 1.20 francs per euro