Bicameralism Canadian provinces had all their upper houses abolished. In Argentina, eight provinces have bicameral legislatures, with a Senate and a Chamber of Deputies: Buenos Aires, Catamarca, Corrientes, Entre Ríos, Mendoza, Salta, San Luis (since 1987) and Santa Fe. Tucumán and Córdoba changed to unicameral systems in 1990 and 2001 respectively. In Australian states, the lower house was traditionally elected based on the one-vote-one-value principle, whereas the upper house was partially appointed and elected, with a bias towards country voters and landowners. In Queensland, the appointed upper house was abolished in 1922, while in New South Wales there were similar attempts
Provinces of South Africa South Africa, and although this independence was never acknowledged by any other country, three other homelands Bophuthatswana (1977), Venda (1979) and Ciskei (1981) followed suit. On 27 April 1994, the date of the first non-racial elections and of the adoption of the Interim Constitution, all of these provinces and homelands were dissolved, and nine new provinces were established. The boundaries of these provinces were established in 1993 by a "Commission on the Demarcation/Delimitation of Regions" created by CODESA, and were broadly based on "planning regions" demarcated by the Development Bank of Southern Africa in the 1980s, and amalgamated from existing