Riksdag Swedish king Gustav I Vasa to include representatives from all the four social estates: the nobility, the clergy, the burghers (property-owning commoners in the towns such as merchants etc.), and the yeomanry (freehold farmers). This form of "Ständestaat" representation lasted until 1865, when representation by estate was abolished and the modern bicameral parliament established. Effectively, however, it did not become a parliament in the modern sense until parliamentary principles were established in the political system in Sweden, in 1917. On 22 June 1866, the Riksdag decided to reconstitute itself as a bicameral legislature, consisting of "Första kammaren" or the First
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