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
Canton of Basel one of twenty-two "sovereign cantons" of Switzerland, enumerated as "Basel (Stadt und Land"). In this sense, as a sovereign member of the Swiss Confederacy, the canton of Basel continued to exist until 1999, when the revised constitution recognised the two former half-cantons as "cantons" for the first time. Several attempts have been made to reunite Basel-City and Basel-Country. In 1969, the citizens of Basel-Country defeated the motion in a referendum. The two cantons have since concluded a number of co-operation agreements, such as joint financing and governance of the University of Basel. Canton of Basel Basel was a canton of