I find the history of Scottish football fascinating.
When the first-ever international match was played, between Scotland and England, in 1872, the entire Scottish side was provided by Queen's Park, of Glasgow.
Queen's Park also won the (English) FA Cup that year, beating The Wanderers in the Final. A few years later, they were captained by Andrew Watson, the first black player in Britain to play top-level football.
To this day, Queens Park are an amateur side. Had they not spurned professionalism, one wonders whether the so-called 'auld firm' of Rangers and Celtic would have achieved their current pre-eminence.