An African-American woman is to appear on the American currency for the first time.
Anti-slavery activist Harriet Tubman will be on new $US20 bill.
Ms Tubman was born a slave in 1820 and helped at least 70 people escape slavery. She replaces former President Andrew Jackson who was a slave owner. His image will move to the back of the note.
Harriet Tubman is best known in the United States for her role in smuggling slaves to safety via the Underground Railroad.
Ms Tubman won an online poll run by campaign group Women On 20s to put a woman on the currency.
Other potential candidates for the spot included Eleanor Roosevelt and civil rights activist Rosa Parks.