Celtic F.C. their sixth successive league title on 2 April 2017, with a record eight league games to spare. As Celtic's unbeaten domestic run continued, they subjected Rangers to their heaviest defeat at Ibrox since 1915, 5–1, on 29 April. Celtic's 2–0 win over Hearts on 21 May saw them finish 30 points ahead of second-placed Aberdeen in the league, with a record 106 points, and the team became the first Scottish side to complete a top-flight season undefeated since Rangers in 1899. On 27 May 2017, Celtic clinched their fourth treble by defeating Aberdeen 2–1 in the Scottish Cup final. The
Celtic F.C. consecutive league titles and the 1967 European Cup. Celtic have won the Scottish league championship 49 times, most recently in 2017–18, which was their seventh consecutive championship. They have won the Scottish Cup 38 times and the Scottish League Cup 18 times. The club's greatest season was 1966–67, when Celtic became the first British team to win the European Cup, also winning the Scottish league championship, the Scottish Cup, the League Cup and the Glasgow Cup. Celtic also reached the 1970 European Cup Final and the 2003 UEFA Cup Final, losing in both. Celtic have a long-standing fierce rivalry with