Harriet Tubman is replacing Andrew Jackson on the $20 bill, and a Massachusetts fourth grader played a role in the change.
Sofia was just 9 when she wrote to President Obama two years ago.
She wanted to know why no women were on any U.S. currency. She even suggested a list of names.
The president wrote back. Now, her dream has come true.
"When I sent the letter to the president, I didn't think it would do anything," Sofia said Wednesday. "when I heard the call today, I was like, 'Well, I guess something big did happen.'"
Sofia spoke to the Treasury Department Wednesday, getting the news that Tubman would be the face of the bill. And Sofia is credited with getting the movement going.
The girl's mother, Kim, couldn’t be prouder of her daughter's accomplishments.
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"It's mind-blowing, it's really amazing to think that a little girl could make this big of a difference in the world," she said.
