A constitutional referendum was held in Switzerland in July and August 1848,[1] the first referendum on record in the Swiss Confederation.

[2] The new constitution was approved by 72.8% of voters and a majority of cantons.

[2][3] In order to pass, any amendments to the constitution needed a double majority; a majority of the popular vote and majority of the cantons.

[4] The decision of each canton was based on the vote in that canton.

[4] Full cantons counted as one vote, whilst half cantons counted as half.