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
History of the Riksdag reflected the lines of division in Swedish society: the nobility, the clergy, the burghers and the peasantry. Under the Instrument of Government of 1809 the Riksdag shared the powers of government with the King. On the basis of the 1863 electoral reform bill the Estates voted in 1866 to dissolve the Riksdag of the Estates and establish a new Riksdag. The new Riksdag was a political assembly with two chambers where the members were chosen in national elections. The revolution was that citizens could participate and vote in the elections without regard to which Estate they had hitherto belonged; instead