Riksdag Riksdag of the Estates, by tradition thought to have first assembled in Arboga in 1435, and in 1866 following reforms of the 1809 Instrument of Government that body was transformed into a bicameral legislature with an upper chamber () and a lower chamber (). The most recent general election was held on 9 September 2018. The Swedish word "riksdag", in definite form "riksdagen", is a general term for "parliament" or "assembly", but it is typically only used for Sweden's legislature and certain related institutions. In addition to Sweden's parliament, it is also used for the Parliament of Finland and the
Polish parliament (expression) Polish parliament (expression) "Polish parliament" (Swedish and Norwegian: "Polsk riksdag"; ; ; ; ; ) is an expression referring to the historical Polish parliaments ("Sejm walny"). It implies chaos and general disorder, and that no real decision can be reached during sessions. Every single member of the Polish parliament during the 17th and 18th century had an absolute veto (); as a result, legislation could only be passed unanimously. Originally, the procedure was used for technical issues such as points of order, but as diverging interests discovered they could disrupt their opponents' agendas singlehandedly, the process came to be abused.