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The horror of the Munich air disaster on February 6th 1958, which killed eight members of Manchester United's back-to-back league championship winning team, leaving two others with injuries which meant they couldn't play again, is something that is written large in the history of English football and is still keenly felt at Old Trafford.
The young team managed by Matt Busby had been dubbed "the Busby Babes" in the media, with football left in mourning as the plane carrying United back from a European Cup quarter-final against Red Star Belgrade crashed having stopped to refuel in Munich, killing 23 people.
Busby himself had suffered life-threatening injuries, but he was determined to carry on and rebuild his team, even taking them to the FA Cup final that season.
Eventually United somehow recovered, winning the FA Cup in 1963 and then the league title in 1965 and 1967, before Busby's greatest ever achievement of leading them to the European Cup in 1968, 10 years after the deaths of talented, largely young players Duncan Edwards (21), Geoff Bent (25), Roger Byrne (28), Eddie Colman (21), Mark Jones (24), David Pegg (22), Tommy Taylor (26) and Liam "Billy" Whelan (22).
Munich survivors Bill Foulkes and the team's captain, Bobby Charlton, who scored twice, were both in the team which beat Benfica 4-1 after extra-time at Wembley in 1968, sealing United's first European Cup a decade after their lowest ebb.