Since it's my topic I should start first ;D
Galatasaray Spor Kulübü, commonly known as Galatasaray, is a Turkish professional football club based in Istanbul, Turkey. It is the association football branch of the larger Galatasaray Sports Club, itself a part of the Galatasaray Community which includes the Galatasaray University and Galatasaray High School.
Galatasaray has won 46 domestic trophies, including a record 19 Süper Lig titles, a record 14 Turkish Cups and a record 13 Turkish Super Cups. It is one of three teams to have participated in all seasons of the Turkish 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 Turkish team to win a European trophy, and one of the few teams in the history of UEFA competitions to become the undefeated winners of a major tournament, losing none of their games in the 1999–2000 UEFA Cup season. In the 1999-2000 season, the club achieved the rare feat of completing a quadruple by winning the Turkish Süper Lig, the Turkish Cup, the UEFA Cup and the UEFA Super Cup in a single season. Galatasaray is also the only Turkish club to have been ranked 1st on the IFFHS World Rankings.