The US will put the image of a woman on an American banknote for the first time in over a century.

The US will put the image of a woman on an American banknote for the first time in over a century, breaking the lock that white male political heroes have on the greenback.

The US Treasury announced Thursday that a yet-unchosen woman, likely "a champion for our inclusive democracy," will feature on the $10 note from 2020, replacing Alexander Hamilton, the first secretary of the treasury.

Only twice before have women featured on US paper currency.

Martha Washington, the wife of first president George Washington, was on $1 notes in the 1880s and 1890s. Pocahontas, a Native American woman linked to the colonial settlement at Jamestown, was featured in a group of people on banknotes in the 1860s.

Treasury Secretary Jacob Lew said the woman on the new $10 bill will be chosen by the Treasury after fielding the ideas of the public "about what qualities best represent democracy."

Hinting at where the candidates will come from, Lew said the change will take place on the 100th anniversary of women's suffrage, when American women gained the right to vote.