Galatasaray Spor Kulübü, also known simply as Galatasaray, is a Turkish football club based on the European side of the city of Istanbul. It is the association football branch of the larger Galatasaray Sports Club, itself a part of the Galatasaray Community Cooperation Committee which includes the prestigious Lycée de Galatasaray, where the football club was founded in October 1905 consisting entirely of student members. Galatasaray is the most successful Turkish football club. They have won 21 Süper Lig titles, 17 Turkish Cups and 15 Turkish Super Cups. It is one of three teams to have participated in all seasons of the Süper Lig since 1959, following the dissolution of the Istanbul Football League, and are the only club to have won the Süper Lig in four successive seasons. Internationally, Galatasaray has won the UEFA Cup and UEFA Super Cup in 2000, becoming the first and only Turkish team to win a major UEFA competition. In the 1999–2000 season, the club achieved the rare feat of completing a quadruple by winning the Süper Lig, the Turkish Cup, the UEFA Cup and the UEFA Super Cup in a single season.