Manny Pacquiao has created history by becoming the first boxer to be a champion in four different decades.The Filipino boxer, who turned 41 in December, is the current WBA welterweight champion after stunning a fighter 10 years his junior in July.Pacquiao's first belt came all the way back in 1998 via an eighth round knockout win against Chatchai Sasakul, which saw 'Pac Man' net the lineal and WBC flyweight titles.What followed was a glittering career that has seen Pacquiao become the only Octuple champion in history by winning titles in eight different weight classes, a feat he achieved in 2010 with a win over Antonio Margarito for WBC super welterweight title.Now, at the turn of the year, Pacquiao has become the first fighter in boxing history to hold a championship across four decades, having previously held belts in the 90's, the 00's and the 10's.

It was a case of rolling back the years against 30-year-old Keith Thurman in July of 2019, where Pacquiao produced a vintage performance to go the distance and take a decision win.

With that victory, Pacquiao had become the oldest welterweight champion in history at the age of 40 and also the first boxer to become a four-time welterweight champion.

Pacquiao is rightly regarded as one of the greatest pound-for-pound fighters in the history of the sport, and as records continue to fall, his case to called one of the greatest of all time will only get stronger.

Among other records, Pacquiao was the first boxer to win the lineal championship in five different weight classes and he is also the first boxer in history to win major world titles in four of the original eight weight classes of boxing.

Pacquiao confirmed that he will fight again in the coming year, but at 41, each fight from here on in will surely be just a bonus.

Whatever his career brings from here on in, he's secured his place in the history book already.