Harriet Tubman (1820?-1913) was probably the most militant black female activist of her time.

As an advocate of black women's rights, Tubman participated in the 1895 National Conference of Colored Women in America (NCCWA). She later became a strong supporter of women's suffrage. Tubman's life was rife with stories of disobedience and rebellion. However, she too was mostly interested in eradicating racial oppression and addressed issues of gender only when discussing the plight of black women. In recognition of her efforts, the US postal service issued a stamp to honour her as part of the Black Heritage series. I 141