Treasury Secretary Jacob Lew announced on Wednesday, April 20, that the seventh president of the United States, Andrew Jackson, will be replaced by Harriet Tubman on the $20 bill. Here are four facts that you should know about the Civil War hero:

She was born as a slave

Harriet Tubman was born between 1820 and 1825; her actual birth date is unknown, according to She was born in Dorchester County, Maryland. In 1849, Tubman escaped Maryland and fled to Pennsylvania along with her two brothers, according to Tubman used the Underground Railroad to escape slavery.

Tubman fought for women’s rights

Tubman believed everyone should be treated equally, black or white, male or female. She toured the country and spoke about her experiences as she fought for her freedom, according to

Tubman rescued over 300 slaves

For ten years, Tubman made 19 trips back to the South and helped hundreds escape slavery and enter freedom, according to She “never lost a single passenger,” Tubman said, according to

Her nickname was “Moses”

Given to her by abolitionist William Lloyd Garrison. Tubman became “Moses of Her People,” according to She was given this nickname as a similar reference of the Bible story of Moses and how he was able to lead the Jews out of slavery and into the Promised Land.

Tubman set a legacy of sacrifice and hard work as she risked her life for many years to help free hundreds of enslaved men, women and children. As the first women to be placed on paper U.S. currency, she will be amongst men who have also left a legacy in this country.