Flags and arms of cantons of Switzerland there is overlap; Unterwalden and Solothurn share the same colours, as do Basel and Appenzell, and with the accession of the modern cantons, Valais and Basel-City, and St. Gallen and Thurgau. Of the 26 cantons since 1999 (22 cantons in 1848, accession of Jura in 1979, three half-cantons designated "canton" in 1999): Distinctively, Swiss cantons use square flags. Historically, the number of cantons was: Nidwalden and Obwalden form traditional subdivisions of Unterwalden. Basel-Stadt and Basel-Landschaft, as well as Appenzell Inner- and Ausserrhoden, are half cantons, resulting from the division of Basel and Appenzell, respectively. The Swiss Federal Constitution of 1999
Cantons of Switzerland The term "Stand" (, ) remains in synonymous usage and is reflected in the name of the upper chamber of the Swiss Parliament, the Council of States (, , , ). In the modern era, since Neuchâtel ceased to be a principality in 1848, all Swiss cantons can be considered to have a republican form of government. Some cantons formally describe themselves as republics in their constitutions. This applies to the Romance-speaking cantons in particular: Geneva (formally "République et canton de Genève" "Republic and canton of Geneva"), Jura, Neuchâtel, Valais, Vaud and Ticino. In the 16th century, the Old Swiss