We’re all familiar with Rosa Parks’s status as the mother of the Civil Rights Movement. But historians consider Septima Clark, an educator who helped pave the way for Parks and other Civil Rights activists, to be the movement’s grandmother. Born in Charleston, South Carolina to a former slave and a laundress, Clark earned her teaching credentials. But as an African American, she was not allowed to teach in Charleston’s schools. In 1919, she successfully petitioned to allow black teachers and principals to work in the city's black schools, collecting enough door-to-door signatures from black parents that the ban was overturned the following year. Clark later worked with the NAACP to secure equal pay for black teachers and teach literacy workshops to African Americans, all while battling racism, getting fired, and being arrested on false charges.