Although we now primarily associate Sir Alex Ferguson (born 1941) with his long tenure at Manchester United (1986-2013) during which he won all major national and European trophies, prior to that he also had a long and successful spell with the Scottish side, Aberdeen.

He was born in Glasgow, to a working-class family, but his footballing talent was spotted early, and he made debut for Queen's Park when he was only 16, scoring a goal in his first game. Later he was transferred to Dunfermline, and then to Rangers. There were rumours that he was discriminated against as his wife was a Catholic.

His managerial career also began young, at East Stirlingshire when he was only 32. He subsequently managed St Mirren, which ended in his only managerial sacking. In 1978, he took over at Aberdeen. Initially, the team did not perform especially well, but by 1980, things had improved dramatically, and they won the Scottish First Division (as it was then) which was (and still is) seen by many as automatically going to one of the Glasgow teams. He also achieved European success in the now defunct European Cup Winners' Cup, and also in the European Super Cup.

He took over at Manchester United in 1986 when, hard as it is for us to believe now, they were in serious risk of relegation. The rest, as they say, is history. He finally retired in 2013, and so far (January 2022) the achievements of his era have not been emulated by any subsequent managers.

More Info: en.wikipedia.org