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
Restoration and Regeneration in Switzerland the great European powers in Swiss affairs. On 20 March, the Congress finalized a declaration on the future status of Switzerland, including the recognition of the territory of the 19 cantons of the Act of Mediation (including financial compensation for those cantons which had lost territory to newly formed ones) and the recognition of Valais, Neuchâtel and Geneva as part of Switzerland, while the Valtellina, Chiavenna and Bormio were detached from the Grisons and made part of the Kingdom of Lombardy-Venetia. Recognition of Swiss neutrality was left undecided, and on 20 May, after Napoleon's return from Elba the Swiss Tagsatzung