Graphical Timeline
In the following timeline, the legend includes the Liberal and Democratic Union, the Liberal Union and the Liberal Federation represented as "Liberal (pre-1979)". The Liberal Party of Australia is represented as "Liberal (post-1979)" only. The grey area represents the duration of Playmander electoral malapportionment, beginning in 1936, in effect until the 1970 election.
Read more about this topic: Premier Of South Australia