Gillingham clinched the npower League 2 title despite surrendering a two-goal lead to AFC Wimbledon.
The already-promoted Gills drew 2-2 to seal their first silverware since 1964 after they claimed the point they needed at home.
Deon Burton and Danny Kedwell gave the newly-crowned champions a 2-0 lead at home over struggling AFC Wimbledon, who hauled themselves level through Jack Midson and Jon Meades.
Port Vale have all-but joined Gillingham in celebrating their promotion after Lee Collins' late own goal for Northampton Town saw Vale draw their game 2-2.
Bottom side Aldershot Town were 1-0 winners over fellow strugglers Dagenham & Redbridge thanks to Michael Rankine's second-half strike.
They are now three points adrift of Barnet, who scored a late winner in 1-0 win over Wycombe Wanderers through Jake Hyde in their final match at Underhill to climb out of the bottom two.
York City also earned a vital three points in their bid to avoid relegation to the Conference as they beat Southend United 2-1 thanks to goals from Adam Reed and Matty Blair.
Meanwhile, Rotherham United held onto third place thanks to their 1-0 win at Plymouth Argyle and Bradford City recorded a 1-0 win over 10-man Burton Albion as James Hanson found the net.
Oxford United comfortably beat Rochdale 3-0 at home thanks to second-half strikes by Andrew Whing, James Constable and Alfie Potter.
Elsewhere, Lee Molyneux's 35-yard free-kick saw Accrington Stanley beat Bristol Rovers 1-0, while Torquay United moved away from the relegation zone with a much-needed 2-0 win over 10-man Morecambe. Chesterfield beat Fleetwood Town 3-1 at Highbury.
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