Between them the two clubs have won 106 Scottish League championships (Rangers with 55 and Celtic with 51),[4] 73 Scottish Cups (Celtic with 40 and Rangers with 33),[5] and 46 Scottish League Cups (Rangers with 27 and Celtic with 19).[6] Interruptions to their ascendancy have occurred rarely, most recently with the challenge of the New Firm of Aberdeen and Dundee United in the first half of the 1980s.