Katie Taylor is aiming to make more history when she faces Chantelle Cameron in Dublin tonight.
The Bray fighter has the chance to become a two-weight undisputed champion as Cameron puts her super-lightweight belts on the line at the 3Arena.
But just who is the English fighter? Here's everything you need to know:
Listen to our brand-new podcast Untouchable: How Katie Taylor Changed The World
Where is she from?
Cameron hails from Northampton in the East Midlands region of England.
What age is she?
The undisputed super-lightweight world champion turned 32 last Sunday and is almost five years younger than Taylor.
What's her fight record?
Cameron has a perfect record, having won all 17 of her professional bouts to date, including eight by knockout.
Her most recent victory came against Jessica McCaskill in Abu Dhabi last November.
What has she said about the fight?
“I’ve got to say, all thanks to Katie because women’s boxing is flying and if it wasn’t for Katie and (American three-weight world champion) Claressa (Shields), none of us women would be here.
“There’s a lot of respect there. But this is my career and my legacy and I’m coming to win.
“Katie is pound-for-pound the best women’s boxer there is and if I can win I can walk away from boxing one day and think ‘I took out the best there is’.”
Get the latest sports headlines straight to your inbox by signing up for free email alerts