<P> In 1897, the club became a Private limited company and Willie Maley was appointed as the first' secretary - manager' . Between 1905 and 1910, Celtic won the Scottish League Championship six times in a row . In both 1907 and 1908 Celtic also won the Scottish Cup, this was the first time a Scottish club had ever won the Double . During World War I, Celtic won the league four times in a row, including 62 matches unbeaten between November 1915 and April 1917 . The mid-1920s saw the emergence of Jimmy McGrory as one of the most prolific goalscorers in British football history . Over a sixteen - year playing career, he scored 550 goals in 547 games (including 16 goals for Clydebank during a season on loan in 1923--24), a British goal - scoring record to this day . In January 1940, Willie Maley's retirement was announced . He was 71 years old and had served the club in varying roles for nearly 52 years, initially as a player and then as secretary - manager . Jimmy McStay became manager of the club in February 1940 . He spent over five years in this role, although due to the Second World War no official competitive league football took place during this time . The Scottish Football League and Scottish Cup were suspended and in their place regional league competitions were set up . Celtic did not do particularly well during the war years, but did win the Victory in Europe Cup held in May 1945 as a one - off football tournament to celebrate Victory in Europe Day . </P> <P> Ex-player and captain Jimmy McGrory took over as manager in 1945 . Under McGrory, Celtic defeated Arsenal, Manchester United and Hibernian to win the Coronation Cup, a one - off tournament held in May 1953 to commemorate the coronation of Elizabeth II . He also led them to a League and Cup double in 1954 . On 19 October 1957, Celtic defeated Rangers a record 7--1 in the final of the Scottish League Cup at Hampden Park in Glasgow, retaining the trophy they had won for only the first time the previous year . The scoreline remains a record win in a British domestic cup final . The years that followed, however, saw Celtic struggle and the club won no more trophies under McGrory . </P> <P> Former Celtic captain Jock Stein succeeded McGrory in 1965 . Stein guided Celtic to nine straight Scottish League wins from 1966 to 1974, equalling the then world record, and a feat which was not matched again in Scotland until 1997 by Rangers . He won the Scottish Cup with Celtic in his first few months at the club, and then led them to the League title the following season . </P> <P> 1967 was Celtic's annus mirabilis . The club won every competition they entered: the Scottish League, the Scottish Cup, the Scottish League Cup, the Glasgow Cup, and the European Cup . Under the leadership of Stein, the club defeated Inter Milan 2--1 at the Estádio Nacional in Lisbon, on 25 May 1967 . Celtic thus became the first British team, and the first from outside Spain, Portugal and Italy to win the competition . They remain the only Scottish team to have reached the final . The players that day subsequently became known as the "Lisbon Lions", all of whom were born within 30 miles of Glasgow . The following season Celtic lost to Racing Club of Argentina in the Intercontinental Cup . </P>

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