Paris Saint-Germain Football Club was founded on 12 August 1970 after the merger of Paris Football Club and Stade Saint-Germain. PSG made an immediate impact, winning promotion to Ligue 1 and claiming the Ligue 2 title in their first season. Their momentum was soon checked, however, and the club split in 1972. Paris FC remained in Ligue 1, while PSG were administratively relegated to Division 3. PSG got their revenge in 1974 when they returned to Ligue 1 and Paris FC slipped into the division below. The club also moved into the Parc des Princes that same year.