For everyone else, it stands the test of time as a lesson from history.
But for Allan McGregor, the events of March 13, 2008 were just another day at the office.
After recording a famous European win, Rangers carried a two goal lead into the second leg of a knock-out tie against a side sitting in second position in the Bundesliga.
And McGregor’s hand-built brick wall was all that stood between the Germans and a place in the next round.
Back then the opposition was Werder Bremen. Tomorrow night, some 14 years on, it’ll be Borussia Dortmund on the other side of the pitch.
But then more things change, the more McGregor stays the same.
And Kevin Thomson for one believes his old club ought to be absolutely thrilled about that.
Thomson was reluctantly forced to watch McGregor’s heroics that night from behind the keeper’s goal as he made his way back to first team fitness after surgery on a double hernia. Weeks later, he would go on to claim a starting place in the first Rangers team to contest a European final in more than 30 years.
And he knows none of it would have happened had it not been for McGregor’s miraculous one man show.
Thomson recalled: “I was only fit enough to make the bench for both games.
“I remember Daniel Cousin scored the first Ibrox with a shot from 35 yards which the goalie threw into the back of the net and Steve Davis got the second after another mistake.
“I think I then played in a bounce game before the second leg as I was desperate to get back up to speed but I wasn’t ready. I just remember warming up, feeling like a bag of washing because I wanted to be out there on the pitch.
“Anyway, I’m sure I was behind the goal with Kris Boyd when Greegsy made the best save of the night. A ball came across the six yard box - it was a sitter - and he was already falling backwards. But somehow he managed to stick out a hand and flick it onto the crossbar. I remember celebrating that save like it was a goal at the other end.
“Boydy and I just looked at each other as if to say, ‘How has he saved that?’.
“But sometimes, when you’re up against it, you need a bit of luck at one end or a bit of brilliance at the other. And that night in Bremen was the Greegsy show. The boys were running their hearts out but the harsh reality was some of the saves he was making were almost unimaginable.
“When I look back on that run to Manchester it’s saves like that which make you realise just how important Greegsy was.”
And still is.
It almost beggars belief that, at the age of 40, McGregor now faces such a similar scenario, having helped Rangers to a stunning 4-2 win at the Westfalenstadion last week.
And Thomson suspects the old man of Ibrox may well have his work cut out again.
The Kelty Hearts boss went on: “He’ll probably need to be at his best again on Thursday because Dortmund will be looking to do some damage in the second leg.
“All I know is, if I was a defender in this Rangers team and I looked over my shoulder and saw Allan McGregor between the sticks then I’d be reassured to know that I can rely on him - just the same way we all felt all those years ago.
“Listen, he’s not getting any younger and I understand that. But, at the same time, his professionalism and his quality are still second to none. He’s still making incredible saves which prove his reflexes are still as sharp as ever.
“But, apart from his talent and how good a goalkeeper he is, the biggest thing about him is just his sheer presence - his will to win, his attitude and his resilience as an individual. That’s the sort of stuff that rubs off on others.
“Rangers need to be resilient. They need to dig deep and roll the sleeves up because the game might not go as planned.
“But when you have people like Allan McGregor by your side you always know you’ve got a chance.
“Look, this is the sort of game you want to be involved in as a Rangers player. The atmosphere will be electric and they have an opportunity in front of 50,000 to knock one of the favourites for the tournament out of the Europa League.
“It’s going to be tough but guys like Greegsy were made for nights like this.”
Trouble is, they were also made for the likes of Erling Haaland - the towering Norwegian force of nature who had to sit out last week’s first leg.
And Thomson said: “With a bit of luck he’ll get the same view as I did that night in Bremen, warming up behind the goal!
“Funnily enough, it reminds me of when we beat Lyon 3-0 in the Champions League. That win was held up as one of the best away performances from a Scottish team but I saw a lot of comparisons with the win in Dortmund too.
“What I do remember is, in the return leg, we had to deal with Karim Benzema who stole the show on that night, scoring twice in a 3-0 win. He obviously went on to prove that he was a world class striker and Haaland is in the same bracket.
“So if he does play on Thursday night everybody has to understand he could be difficult to stop. That’s going to be a challenge within itself because he is the real deal.
“That night in Bremen, the boys had to stand up to the kitchen sink being thrown at them - and that may turn out to be the case on Thursday night too.
“I saw Jude Bellingham’s interview after the game and he was clearly hurting, so you have to expect a reaction from a team full of quality international players.
“The crowd will have a massive role to play because if Dortmund were to score an early goal and the team starts off a bit edgy, then the crowd has to get behind the boys and push them on.
“If there is a set-back then you need to react to it. But if there’s a set-back and you crumble then you’re in for a long, difficult night.
“And that’s when a guy like Greegsy could come into his own.”
