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
Inter City Football League Inter City Football League The Inter City Football League was formed in 1899 in Scotland as one of several supplementary football leagues that were created in order to increase the number of fixtures for Scottish Football League clubs. The founder members of the league were Celtic, Queen's Park, Rangers and Third Lanark (who had previously played supplementary fixtures in the Glasgow Football League) plus Heart of Midlothian and Hibernian (who in addition to the Inter City League continued to play supplementary matches in the Edinburgh / East of Scotland Football League). In 1902 Dundee, Partick Thistle and St Mirren joined