Here are 17 photos from our archive from that memorable day in the Midlands.
13. Dave Bassett with wife Christine after the game
Sheffield United v Leicester City - 5 May 1990 Photo: Peter Tuffrey
14. Dave Bassett celebrates promotion with his players
Sheffield United v Leicester City - 5 May 1990 Photo: Peter Tuffrey
15. United's fans play their part
Sheffield United v Leicester City - 5 May 1990 Photo: Peter Tuffrey
16. Blades fans took over Filbert Street
Sheffield United v Leicester City - 5 May 1990 Photo: Peter Tuffrey