Scottish football clubs have participated in European association football competitions since 1955, when Hibernian entered the inaugural European Cup. Scottish sides have won four UEFA competitions between them, with Celtic becoming the first side from the British Isles to be European champions by winning the 1966–67 European Cup. Rangers (in 1972) and Aberdeen (in 1983) both won the Cup Winners' Cup before its abolition, with Aberdeen going on to become the only Scottish side to win the European Super Cup in the same year as their Cup Winners' Cup triumph.