Martin O'Neill's Foxes remained on course to secure the Club's third consecutive top-10 finish in the Premier League with a brilliant 1-0 success at Liverpool on 21 April, 1999.
After breaking a 13-year barren run at Anfield one year earlier, City made it two wins in a row on Merseyside, to extend their unbeaten run against the Reds to five games.
In truth, it was a scrappy game from both sides, but with the home crowd grumbling at the prospect of a home draw with Leicester, up stepped Ian Marshall in the 90th minute.
When Andy Impey's long ball forward landed to the Liverpool-born striker's feet, Marshall did the rest, drilling a powerful low effort into the bottom corner.
Already promoted back to the Premier League after a decade away, on 22 April, 2014, Nigel Pearson's City headed to Bolton Wanderers knowing a win would clinch the Championship title.
Just after the hour-mark in Lancashire, it came through to Lloyd Dyer in the penalty area to riffle a fearsome effort into the top corner in front of a jubilant contingent of travelling Foxes supporters.
Once the full-time whistle had blown, the celebrations could well and truly get underway as Leicester capped off ending their top-flight exile with a seventh second-tier title victory.
Consecutive wins over Huddersfield Town and Doncaster Rovers, meanwhile, saw Pearson's men finish the 2013/14 campaign with an incredible 102 points.
All of City's hard work during the previous season could have counted for little, though, as they battled against relegation back to the Championship in 2014/15.
Despite occupying bottom place in the Premier League at Christmas, Pearson's side were embarking on a truly remarkable run of form as spring sprung.
Following wins over West Ham United, West Bromwich Albion and Swansea City, they arrived at Turf Moor to face Sean Dyche's Burnley on 25 April, 2015.
Within 60 seconds of Matty Taylor's missed penalty for the Clarets, Jamie Vardy bundled home the winner, securing one of seven wins in the last nine games.