Thousands thronged into pubs, jostling since early morning for the best position.
Outside, rain teemed down on the deserted streets. Flags and bunting flapped in the breeze as Irish fans dared to dream on.
In Dublin, it was just impossible to be Irish and indifferent.
No-one knew quite what to make of the Saudi team. Already on their way out, would they lose initiative and bow to Ireland's confidence? Or would they fight to salvage their pride?
Seven minutes into the first half, Robbie Keane swung his right leg around his body to fire the ball over the Saudi line. Less able Irish fans attempted to copy his youthful cartwheels of joy.
News that Germany was ahead of Cameroon crept around the pubs.
The republic only needed to stay ahead to qualify for the next round. A second goal from Gary Breen ruled out the cruel scenario of drawing lots.
The maths of qualification had been debated ad nauseum. Now it was time to work out the maths of finding the airfare to South Korea.
A third goal from Damien Duff confirmed it was time to raid the savings account. Credit Unions around Ireland braced themselves.