For years, the Liffey has represented the bridging point of different cultures within the capital city, but now it's all changed.
Dublin GAA have had many success over the last few years - a complete dominance of the Leinster Championship, three All-Irelands in six years, a heap of All-Stars - perhaps their longest-lasting legacy will be the blurring of these once-strong divisions between North and South.
Not that the proof is in the pudding. No, the proof is, in fact, in the choice of filling in a crisp sandwich.
Northsiders Johnny and Niall Cooper went head-to-head with Southsiders Michael Darragh Macauley and Darragh Nelson in the King Sambo challenge. Both teams were given a choice of bread and fillings along with packets of King Crisps in which to create a Sambo which would best satisfy the taste of judge, jury, and teammate Bernard Brogan.
The Southside team unsurprisingly went with a bap, relish, brie cheese, chicken and salami along with the King crisps.
The Northside team started off as expected, with some more straightforward bread, mayo and chicken. Before the shocking addition of prawns. A prawn sandwich? Watch out for who won below: