One-time slave to be new face of US$20 bill

The one-time slave turned abolitionist Harriet Tubman was named Wednesday as the new face of the $20 banknote, the first time an African American has featured on US currency.

A sweeping redesign of the US bills to be unveiled in four years will also protect Alexander Hamilton's central place on the $10 note, once thought threatened until Broadway's hit hip-hop musical "Hamilton" made the 18th century US finance chief a modern-day star.

Hamilton's latter-day successor, Treasury Secretary Jacob Lew, announced the changes slated for the $5, $10, and $20 notes after more than a year of lobbying and polling, with heavy pressure for a female figure to take place on a US banknote.

An open poll of more than 600,000 people had strongly favored Tubman, a hero to African Americans for her escape from slavery in Maryland in 1849 to help run the legendary Underground Railroad that helped thousands of slaves flee to freedom in the 19th century.

The announcement brought widespread cheers.

"A woman, a leader, and a freedom fighter. I can't think of a better choice for the $20 bill than Harriet Tubman," tweeted Hillary Clinton, the Democrat seeking to become the country's first female president.

Clinton's rival for the Democratic nomination, Bernie Sanders, echoed: "I cannot think of an American hero more deserving of this honor than Harriet Tubman."

The plan originally was to revamp the $10 note in 2020, possibly having a woman share it with Hamilton, while the $20 bill, one of the world's most circulated banknotes, would wait another decade for redesign.