In as early as 1435, representatives of different social groups were called to a meeting in Arboga to discuss and determine affairs of the Realm. The Arboga meeting is therefore sometimes referred to as Sweden's first parliament. However, it was not until 1527 and later 1544 at King Gustav Vasa's two assemblies in Västerås that representatives of all four estates - the Nobility, the Clergy, the Burghers and the Peasantry - were called on to participate. The Riksdag of the four estates was replaced in 1866 by a bicameral Riksdag. Between 1905 and 1917, a parliamentary system of government successively evolved, but was not enshrined in the Constitution until the introduction of the new Instrument of Government in 1974. A few years earlier, the bicameral Riksdag was also replaced by a unicameral Riksdag.
Between the city center and the Old Town you will find this beautiful and huge building called Riksdag (Swedish Parliament). It is built on an island of its own.
The Public Gallery is open to the public during all meetings of the Chamber.
Guided tours for the general public are held on Saturday–Sunday from September to mid-June, and on Monday–Friday in the summer.
Swedish Parliment building is one of the most historical buildings and it is on a seperate 'Island'.
The Swedish Parliament is called "Riksdag". It consists of 349 Members of Parliament. The building was built in the 1920s in modern style - even the glassy bulge was made in these times.