Speaker of the Riksdag contacts programme. The Speaker chairs the War Delegation (), when it is deemed necessary to convene. Historical predecessor Speaker of the Riksdag The speaker of the Riksdag () is the presiding officer of the national unicameral legislature in Sweden. The Riksdag underwent profound changes in 1867, when the medieval Riksdag of the Estates was abolished. The new form of the Riksdag included two elected chambers, each with its own speaker. Since the "de facto" introduction of parliamentarism in 1917, the Riksdag has properly functioned as the institution to which the Prime Minister and the Government are held accountable. In 1971
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