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
Immigration to Switzerland countries every 5 years. Source: The definition of population of immigrant background includes all persons, regardless of their nationality, whose parents were born abroad. This definition includes first- and second-generation immigrants. In 2011, people of non-Swiss background made up 37.2% of the total resident population of Switzerland, with large differences between cantons. Immigration to Switzerland There has been significant immigration to Switzerland since the 1980s. By contrast, during the 19th century, emigration from Switzerland was more common, as Switzerland was economically a poor country where a large fraction of population survived on subsistence farming. The largest immigrant groups in Switzerland