A look back at Town's famous European glory, 40 years on
Town travelled to the Olympic Stadium in Amsterdam with one hand already on the UEFA Cup after a 3-0 win in the home leg at Portman Road - or so many may have thought.
What actually played out in the Dutch capital was a high-scoring and nervy second leg affair as the Blues edged AZ Alkmaar 5-4 on aggregate following a 4-2 defeat on the night.
Buoyed from their first leg victory in Suffolk two weeks prior, Bobby Robson's side got off to the perfect start as Frans Thijssen volleyed into the back of the net inside four minutes.
AZ weren't in any mood to let the final slip away, though, as Austria international Kurt Welzl headed in an equaliser three minutes later before he turned provider for Johannes Metgod to nod the Dutch side in front.
Seven minutes later, Arnold Muhren's corner was flicked on by Paul Mariner to John Wark, who made no mistake in netting his - at the time - European record-equalling 14th goal in the competition that term.
Pier Tol made it 3-2 to AZ on the night, reducing the aggregate deficit to two goals on 40 minutes.
The Dutch outfit dominated throughout the second half with Jos Jonker scoring a fine free-kick with 16 minutes remaining but Town held on to seal European glory.
As well as on the Club website, Town's official social media channels are celebrating the 40th anniversary of the UEFA Cup victory using the #81Remembered hashtag.