Prime Minister's Office (Finland)
The Senate of Finland was founded on 18 August 1809 in the Grand Duchy of Finland when Emperor Alexander I of Russia signed a standing order on its establishment at Peterhof Palace. The Senate was initially called the Governing Council until it was renamed as the Senate in 1816. The Senate of Finland was divided into the Economic and Judicial Divisions; the Economic Division was further divided into departments, such as the Office Administrative Department (; ). On 1 October 1892, the Office Administrative Department was disbanded and the modern equivalent position of Prime Minister in the Senate, the Vice-Chairman of the Economic Division, was granted a support office in its place. The new unit was called the Office of the Economic Division (; ). Following Finnish independence in 1917, the unit was renamed as the Prime Minister's Office on 27 November 1918 with the operations and staff remaining intact.
Social Democratic Party of Finland
The SDP was founded as the Finnish Labour Party () in 1899. The name was changed to the present form in 1903. SDP was closely associated with the Finnish Trade Union Federation (SAJ), established in 1907, as all of its members were also members of the party. The party remained a chiefly extra-parliamentary movement until universal suffrage was introduced in 1906 (before Finland's independence from Russia in 1917), after which the SDP's share of the votes reached 47% in 1916, when the party secured a majority in the parliament — the only time in the history of Finland when one party has had such a majority. The party lost its majority in the 1917 election, and in 1918 it started a rebellion that escalated into the Finnish Civil War.