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 Korea administrative divisions with equal status: special autonomous province, special city, metropolitan city, and special autonomous city. A special autonomous province (, ) is a province with more autonomy over its economy and more powers are given to the provincial government. Jeju is the only special autonomous province, while Seoul is the only special city and Sejong is the only special autonomous city. Governors for the provinces and mayors for the special/metropolitan cities are elected every four years. Current governors and mayors are listed at List of governors of South Korea. South Korea claims five provinces on the territory controlled by