The Scot put his WBA and IBF super lightweight titles on the line against WBC and WBO champion Jose Ramirez, and defeated the Mexican-American on points in Las Vegas.
The victory over the previously unbeaten Ramirez (26-0, 17KOs) means Taylor become Scotland’s first undisputed world champion since Ken Buchanan.
Here’s how the Prestonpans fighter progressed from Commonwealth Games champion who learned his craft in Edinburgh’s Lochend Gym to boxing greatness.
13. Vazquez vanquished
Josh Taylor made the biggest statement of his career so far in November 2017 in front of a sold-out Royal Highland Centre at Ingliston. He brought Mexico's Miguel Vazquez to his feet in the ninth round with a win that sent shockwaves throughout the boxing fraternity. The win saw him retain his WBC Silver belt. Photo: Paul Devlin/SNS
14. Barry McGuigan raises eyebrows
Taylor defended his WBC Silver belt with a third-round stoppage of Nicaragua's Winston Campos at the Hydro in March 2018. Taylor's then manager Barry McGuigan raised eyebrows afterwards when he said the Scot was one of the best fighters in the world. The former world champion turned out to be spot on. Photo: Bill Murray/SNS
15. Postol sent packing
A sell-out crowd at the SSE Hydro saw Josh Taylor overcome former world champion Viktor Postol on points after 12 gruelling rounds in a fight which edged the 27-year-old closer to a tilt at the world title. The WBC Super-Lightweight final eliminator against the Ukrainian was the toughest fight of Taylor's career up to that point but he came through with flying colours. Photo: Rob Casey/SNS
16. No quarter asked or given
After seeing off Postol, Josh Taylor took part in the World Boxing Super Series. The knockout format saw him face American Ryan Martin in the quarter-final at the Hydro. Taylor took care of Martin in the seventh round to book his place in the semis and set up at maiden shot at the IBF world title. Photo: Paul Devlin/SNS