[3] For the first six years of its existence, there was no league football, so matches were arranged on an ad hoc basis, supplemented by cup competitions organised at local and national level.
[5] Burnley turned professional at the end of 1883, first entered the FA Cup in the 1885–86 season, and were one of the 12 founding members of the Football League in 1888.
[6] The team have played in the top four tiers of English football from 1888 to the present day.
[7] Burnley were the second, and are one of only five teams to have won all four professional divisions of English football, along with Wolverhampton Wanderers, Preston North End, Sheffield United and Portsmouth.
[7] The table details their achievements in domestic and international competitions, and records their top goalscorer and average home league attendance, for each completed season.