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 constitution it showed that the parties in the Riksdag were able to agree upon fundamental changes of the political system, which transformed the Riksdag from a bicameral legislature into a unicameral one. This would have 350 seats, all of which would be filled by direct election. However, the second general election to the unicameral Riksdag only gave the government support from 175 members, while the opposition could mobilize an equal force of 175 members, resulting in what became known as the "lottery Riksdag", in which the Speaker had to draw lots to resolve deadlocked votes. In 1974 it was decided