Stag Dos believe to go all the way back to 5th Century of Ancient Greek Times.
A stag night dinner was arranged for the stag by Spartan Soldiers on the night before his wedding.
Everyone knows King Henry VIII loved weddings and was possible addicted to his stag nights, he got married enough times.
Late 1800s stags / grooms used their stag night to say goodbye to their mates they didn’t want to invite into their marital home, nice.
These days lavish bashes are all the rage, with nights, weekends and even weeks booked to celebrate the stag do, and why not?