The Butler LCL introduced the electoral malapportionment scheme later known as the Playmander in 1936. The House of Assembly was also reduced from 46 members elected from multi-member districts to 39 members elected from single-member electorates. The electorates consisted of rural districts enjoying a 2-to-1 advantage in the state parliament, even though they contained less than half of the population. Two-thirds of seats were to be located in rural areas ("the country"). This arrangement was retained even as Adelaide, the state capital, grew to two-thirds of the state's population.
