List of Scottish football champions
The Scottish football champions are the winners of the highest league in Scottish football, namely the Scottish Football League (SFL) from 1890 until 1998, the Scottish Premier League (SPL) from 1998 until 2013 and the Scottish Premiership thereafter. The SFL was established in 1890, initially as an amateur league until professionalism in Scottish football was legalised in 1893.
Source: Wikipedia — List of Scottish football champions (CC BY-SA 4.0)