It was founded in 1947 on a platform opposing the constitution of the French Fourth Republic, but had little success, and was wound down by 1955. The core leadership would go on to found the Union for the New Republic. 1947 (MCMXLVII) was a common year starting on Wednesday (the link is to a full 1947 calendar). ... The Fourth Republic existed in France between 1946 and 1958. ... 1955 (MCMLV) was a common year starting on Saturday of the Gregorian calendar. ... Union of Democrats for the Republic (French : Union des Démocrates pour la République), also known as the Gaullist Party was a political party of France. ...