An emphatic 4-0 win for Hearts on Sunday saw Celtic's unbeaten domestic run finally come to an end after 55 Scottish Premiership games without tasting defeat.
Outside of European competition, the Bhoys, who are chasing their seventh successive title this season, had not lost since going down 2-1 away to St Johnstone in May 2016.
Brendan Rodgers' side remain two points clear at the top of the table and can be confident of retaining their crown ahead of challengers Aberdeen and Rangers.
And while their streak is finally over, they can now rub shoulders with a select group of teams from across Europe to have orchestrated similar feats.
Here's a look at some of the other clubs to have held such mastery over their respective national league competitions....
AC Milan | 1991–1993 | 58 matches
The Rossoneri of the late 1980s and early 1990s continue to be remembered as one of the best teams in modern football history.
Until Real Madrid's triumph over Juventus in the Champions League in Cardiff in June, they were the last side to retain the European Cup.
That achievement came under Arrigo Sacchi in 1989 and 1990, but it was his successor Fabio Capello who oversaw a 58-match unbeaten run in Serie A, which included marching to the 1991-92 Scudetto without suffering a single defeat.
Given Italian football's status at the time as the world's premier domestic football competition, Milan's achievement is hard to top.
Porto | 2010-2012 | 55 matches
Taking over from Jesualdo Ferreira and being followed by Vitor Pereira, coaching prodigy Andre Villas-Boas did not suffer a single league defeat during his time in charge of Porto.
The Dragons won the Primeira Liga, Portuguese Cup and UEFA Europa League in his lone campaign at the helm, before he resigned to take over at Chelsea.
Nicolas Otamendi, Fredy Guarin, Joao Moutinho, James Rodriguez, Radamel Falcao and Hulk all starred in a team that went 55 league matches unbeaten, surpassing Porto's previous best of 53.
That tally had been established between 1994 and 1996 by Bobby Robson, the Englishman who helped Villas-Boas to break into the world of elite football coaching.
Lincoln Red Imps | 2009-2014 | 88 matches
They might lack the standing of Milan or Porto, but Lincoln Red Imps deserve recognition for their marathon unbeaten league record in Gibraltar's Premier Division.
From May 9 2009 to September 19 2014, they avoided defeat in the competition.
At 1,959 days, it is - according to UEFA - the longest chronological unbeaten league run in European football and helped them to rack up 14 consecutive titles from 2002-03 to 2015-16.
And the name will be familiar to Celtic fans, Lincoln having stunned the Hoops 1-0 in Brendan Rodgers' first match in charge in July 2016.
The Scottish giants avoided an embarrassing exit from the second qualifying round of the Champions League by winning the second leg 3-0 in Glasgow.
Steaua Bucharest | 1986-1989 | 104 matches
The longest unbeaten league run in European football remains the proud property of Steaua Bucharest.
The Romanian powerhouse lasted an extraordinary 104 league games before finally losing and managed to win every one of their 15 Romanian Cup matches in that spell, making it a total of 119 unbeaten domestic fixtures.
Their dominance at home also translated to success on the continental stage, Steaua stunning Terry Venables' Barcelona on penalties to win the European Cup in Seville in 1986.
|Lyon star Fekir denies being close to Liverpool switch|
|Pogba: I learned a lot from Abou Diaby|
|Where next for Real Madrid stars Ronaldo and Bale?|
|Shingler and Hewitt out of Wales tour|
|Kyrgios pulls out of French Open|
|Khan wants to bow out by winning blockbuster Brook fight|
|Is winter coming? Game of Thrones stars descend on Monaco|
|Root urges England´s batsmen to ´find a way´|
|Lovren, Van Dijk absolve Karius of blame|
|We all know where our nipples are - Hansen welcomes tackle trial|
|Rooney would thrive in MLS, says DC United boss|
|Pakistan complete demolition of sorry England|
|Curry, Durant reveal the secret to Thompson´s success|
|Salah will miss World Cup, claims Saudi sports administrator|
|Deschamps marvels at Zidane´s incredible Champions League success|
|FIA satisfied Ferrari ´inside the rules´|
|NSW Origin hopeful Moylan pulls the strings for rampant Sharks|
|Champions League blunders will stay with Karius - Clemence|
|Warriors assuming Iguodala won´t play game seven, Kerr says|
|Lampard confirms Derby talks over vacant managerial position|
|French Open 2018: The science behind Nadal´s clay-court dominance explained|
|Walsh to continue as Bangladesh head coach|
|Bale makes emphatic point after Champions League omission|
|Casemiro: I bet Ronaldo stays at Madrid|
|Brewers pull away for blowout win over Mets|
|Warriors´ outburst sinks Rockets, forces game seven|
|MLS Review: Timbers win sixth straight, Techera scores hat-trick|
|It was like wrestling – Klopp unhappy with Ramos challenge on Salah|
|McKinnon says 49ers aiming to win Super Bowl this season|
|Choo makes history with walk-off home run, Rangers seeking ball|
|Shin-Soo Choo makes history with walk-off home run, Rangers seeking ball|
|Marcelo: I think Cristiano Ronaldo will stay at Real Madrid|
|Miller-Uibo shines as Semenya sets record in Eugene|
|Rose extends lead as Spieth slides|
|Prompt recovery, Salah – Ramos wishes Liverpool star well|
|Indians reliever Miller headed back to disabled list|
|Warriors´ Iguodala to miss game six against Rockets|
|I shouldn´t have done it – Ronaldo accepts future comments mistimed|
|Klopp: Liverpool behind Karius after Champions League horror show|
|Karius´ final blunders could destroy his career – Kahn|
|Zidane understands Bale frustration|
|Bale, Karius send Twitter into overdrive in action-packed Champions League final|
|Ronaldo: It should be called the CR7 Champions League|
|Zidane revels in Madrid´s third successive Champions League title|
|I lost Liverpool the game – Karius apologises for Champions League errors|
|Barcelona congratulate Champions League winners Real Madrid|
|Salah injury update: Egyptian FA calm World Cup fears|
|Ronaldo must stay with Madrid - Zidane|
|Champions League final player ratings: Bale stars as Karius shocker costs Liverpool|
|Cristiano is happy and will continue to be happy – Perez cools Ronaldo future talk|
|Win as a team, lose as a team - Liverpool captain Henderson not blaming Karius|
|Modric: Madrid have built dynasty like Bulls, Celtics and Lakers|
|Where would Cristiano go? - Benzema predicts Ronaldo stays at Madrid|
|We do not think about that - Zidane shrugs off Ronaldo exit talk|
|The divine right of kings: Zidane´s Real Madrid ride luck all the way to greatness|
|Klopp fears Salah will miss World Cup|
|Du Plessis returns, 17 uncapped players selected by South Africa|
|Bale demands playing time after Champions League heroics|
|Ramos: Ronaldo is indispensable to Real Madrid|
|It´s been beautiful to play for Real Madrid - Ronaldo hints at shock exit|
|Salah injury marked beginning of the end for Liverpool|
|Bale double makes Champions League history|
|Bale, Mandzukic & the best Champions League final goals|
|Real Madrid 3 Liverpool 1: Brilliant Bale undoes Klopp and calamity Karius|
|Jokanovic proud Fulham stuck to style in Wembley win|
|Real Madrid´s Carvajal limps out of final to prompt Spain fears|
|Broughton and Catalans continue fine form|
|Tearful Salah off injured in Champions League final|
|Leinster complete historic double by beating Scarlets|
|Lions snatch win from Stormers, Brumbies stun Bulls|