After title rivals Tottenham Hotspur were held to a draw by West Bromwich Albion, a trip to Manchester United for Claudio Ranieri's men quickly became one of the biggest days in the Club's existence.
On 1 May, 2016, thousands of Foxes fans followed their team to the Theatre of Dreams knowing a victory over Louis van Gaal's Red Devils would mathematically clinch the English title.
Anthony Martial, though, put the home side ahead and, while Wes Morgan's header levelled matters, the three points were agonisingly beyond City's reach, meaning they'd have to wait at least another day.
The next day, Tottenham needed to win at Chelsea to stay in the race, but when Eden Hazard equalised late on in a 2-2 draw, it was those wearing the blue of Leicester who celebrated the most.
The week between 27 April and 3 May across the Club's history also included several other highlights for Foxes fans, including a 2-1 success at Southampton on 29 April, 2000.
Martin O'Neill was set to leave Leicester at the end of the 1999/00 season, which included City's second League Cup success in just three years, and the Northern Irishman left the Club in good shape.
Despite a final day defeat at Sheffield Wednesday, goals from Tony Cottee and Muzzy Izzet started a run of three consecutive victories for the Foxes, helping them seal a fourth consecutive top-10 finish.
O'Neill's men followed that win at The Dell with another away triumph on 3 May, 2000, with Cottee once again finding the net before Phil Gilchrist's effort confirmed a magnificent 2-0 win at Liverpool.
More recently, Brendan Rodgers' tenure in charge of the Foxes really began to gather momentum on 28 April, 2019, with a brilliant 3-0 rout of Arsenal at King Power Stadium.
A fifth win in eight games since the Northern Irishman's appointment further cemented City's place in the top half of the Premier League and established a keen sense of optimism on Filbert Way.
Loan star Youri Tielemans got the home side off and running with a headed effort, following a red card for Gunners youngster Ainsley Maitland-Niles, before Jamie Vardy stole the headlines later on.
Two strikes - the second of which represented his 100th league goal for the Club - wrapped up a throughly dominant performance from Leicester as Rodgers continued to build on the side's potential.