 The club enjoyed their greatest successes during the 1960s and 70s under Jock Stein when they won nine consecutive league titles and the 1967 European Cup.Celtic have played in green and white for the entirety of its history, adopting hoops in 1903, those being used ever since.Celtic are one of only five clubs in the world (which also includes their rivals Rangers) to have won over 100 trophies in their history.