Real Sociedad de Fútbol, SAD, more commonly referred to as Real Sociedad, is a Spanish football club based in the city of San Sebastián, Basque Country, founded on 7 September 1909. Its home stadium is Anoeta, which seats 32,200 spectators. Real Sociedad won the La Liga title in 1980–81 and 1981–82, and last finished runners-up in 2002–03. The club play the Basque derby against Athletic Bilbao. Real Sociedad were founder members of La Liga in 1928, and their longest spell in the top flight was for 40 seasons from 1967 to 2007.