 Complete the following phrase:  The club was founded in 1884 by William Morley as an offshoot of Derbyshire County Cricket Club. Its competitive peak came in the 1970s when it twice won the First Division and competed in major European competitions on four occasions, reaching the European Cup semi-finals as well as winning several minor trophies. Additionally, the club was a strong force in the interwar years  finishing league runner-up twice in the 1930s  and winning the first post-war FA Cup in 