he Swedish Social Democratic Party, (Swedish: Sveriges socialdemokratiska arbetareparti, SAP, 'Social Democratic Labour Party of Sweden'), contests elections as 'Labour Party - Social Democrats' (Arbetarepartiet-Socialdemokraterna), commonly referred to just as 'the Social Democrats' (Socialdemokraterna) or colloquially Sossarna (plural of sosse); is the oldest and largest political party in Sweden. The party was founded in 1889. (In 1917, a schism occurred when the communists and other Revolutionary Left factions split from the Social Democrats to form what is now the Left Party). The symbol of the party is traditionally a red rose, which is believed to have been Fredrik Ström's idea. The Social Democratic Party's position is in theoretical base within Marxist revisionism. Its party program interchangeably calls their ideology democratic socialism, or social democracy. The party supports social welfare provision paid for from progressive taxation. The party supports a social corporatist economy involving the institutionalization of a social partnership system between capital and labour economic interest groups with government oversight to resolve disputes between the two factions. In recent times they have become strong supporters of feminism, equality of all kinds, and in strong opposition to what they see as discrimination and racism. Since 7 December 2008, the Social Democrats have been part of the Red-Greens alliance of opposition parties in Sweden, alongside the Greens and Left Party.