There’s some cracking pictures, including the 2011 play-off final win against Huddersfield Town and victory over Chesterfield at Wembley.
We’ve also remember a family affair against Manchester United and bring you some classic retro pics from the 1960’s and 1970’s.
Take a look at our gallery and enjoy a trip down memory lane.
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5. Party time for the boss
Peterborough Manager Darren Ferguson celebrates promotion in 2011 at a rather fitting Old Trafford venue. Photo: Dean Mouhtaropoulos
6. Winning at Wembley
Josh McQuoid (R) celebrates with team mates Britt Assombalonga and Tommy Rowe after scoring to make it 1-0 during the Johnstone's Paint final win in 2014. Photo: Michael Regan
7. Winning at Wembley - 2014
Posh players celebrate with the trophy after winning the Johnstone's Paint Trophy against at Wembley Stadium on March 30, 2014. Photo: Ben Hoskins
8. Trophy time
Peterborough manager Darren Ferguson celebrates with the trophy after watching his side get the better of Chesterfield in the Johnstone's Paint Trophy final. Photo: Ben Hoskins