Social Democratic Party References Social Democratic Party political party, Iceland Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Iceland/ Political developments…Party and the more leftist Social Democratic Party that ruled from 1959 to 1971 and the other a partnership between the Independence Party and the agrarian-liberal Progressive Party that governed from 1995 until 2007. Read More…Party and the more leftist Social Democratic Party that ruled from 1959 to 1971 and the other a partnership between the Independence Party and the agrarian-liberal Progressive Party that governed from 1995 until 2007. Read More