But the little known reason why she might be an even more perfect choice is even better.

A lobbying group, Women On 20s, has presented the White House with a petition to make Harriet Tubman the face of the $20 bill.

Tubman, who led dozens of other slaves through the Underground Railroad, would be the first African American and second woman to grace American currency.

"Our paper bills are like pocket monuments to great figures in our history," Women On 20s Executive Director Susan Ades Stone said in a statement. "Our work won't be done until we're holding a Harriet $20 bill in our hands in time for the centennial of women's suffrage in 2020."

Why would Harriet Tubman be the perfect choice for this momentous occasion?

Vox.com says it's because Tubman's work with the Underground Railroad overshadowed her service as a scout, cook, nurse – and spy - during the Civil War. She only received her pension 35 years after the end of the Civil War.

The U.S. government later bargained down her pension from – wait for it -- $25 per month to $20 per month - $5 less than male soldiers received.