Susan B. Anthony (1820–1906) was a pivotal American social reformer and women's rights activist, leading the charge for women's suffrage. Born into a Quaker family, she began her activism by collecting anti-slavery petitions and, in 1851, forged a lifelong partnership with Elizabeth Cady Stanton. Together, they founded several influential organizations, including the National Woman Suffrage Association, and published the women's rights newspaper, The Revolution.

In a defiant act, Anthony was arrested and convicted in 1872 for illegally voting, drawing national attention to the suffrage movement. She tirelessly campaigned for a constitutional amendment granting women the right to vote, which was finally ratified as the Nineteenth Amendment in 1920, colloquially known as the "Susan B. Anthony Amendment." Her dedication also extended internationally, playing a key role in founding the International Council of Women. Public perception of Anthony transformed during her lifetime from ridicule to widespread admiration, culminating in her 80th birthday celebration at the White House and her portrait appearing on the 1979 U.S. dollar coin.