Stags would end their relegation season with a 2-1 win over Northampton Town in front of just 3,928 fans.
Goals from Andy White and a late Liam Lawrence penalty took the victory.
The League was known as The Second Division back in those days and saw Huddersfield Town and Cheltenham Town join Stags and Northampton in going down.
That year Wigan Athletic and Crewe Alexandra sealed automatic promotion, with Cardiff City going up via the play-offs.
Here is the side that started the game that day and what happened to them following relegation.
9. Wayne Corden
Wayne Corden played 195 timess for Mansfield Town, leaving for Scunthorpe United in 2005. After retiring from club football, Corden began playing pub football in the Staffordshire Potteries League Veterans' Division. He worked at a residential school for children with learning difficulties. Photo: Clive Mason
10. Junior Mendes
Junior Mendes controversially left Stags after the 2004 play-off final defeat - to join Huddersfeild Town. Mendes studied at University of the West of Scotland completing a MRes in Sport and exercise Science in 2018. He now works as a firtness coach at St Mirren. Photo: Mark Thompson
11. Andy White
White left Stags to join Crewe in 2004, before a brief spell at Notts County. After beginning lift at Hucknall Town his career went full circle and he went on to play amateur football in the step seven, Central Midlands Football League with Sutton Town A.F.C. and Swanwick Pentrich Road FC. Photo: Chad