Tuesday, April 15, 1969
Victory over Plymouth Argyle at Vicarage Road confirmed Watford's promotion to the second tier of the Football League for the first time.
The club's highest league crowd of the season - dwarfed only by what remains the club's record attendance during the FA Cup replay with Manchester United - saw a disputed Roy Sinclair goal settle the game and seal promotion.
The victory provoked emotional scenes, as the crowd invaded the pitch on the final whistle and Ken Furphy's side took a bow from the directors' box.
Reproduced by kind permission of Matt Rowson from his book, Watford FC On This Day