More than half a century before Sen. Kamala D. Harris was named Joe Biden’s running mate Tuesday, another Black woman from California took the stage at a Chicago convention to make a momentous declaration.

“This is a historic moment in American political life,” the journalist and political activist Charlotta Bass told the crowd. “Historic for myself, for my people, for all women. For the first time in the history of this nation a political party has chosen a Negro woman for the second highest office in the land.”

Indeed, while Harris will indeed be the first Black woman and the first Asian American to appear on a major-party ticket, she is not the first Black woman to run for vice president. That title belongs to Bass, who joined a long-shot Progressive Party ticket in 1952, more than a decade before the Voting Rights Act was signed into law.

Martha Jones, a historian at Johns Hopkins University, said Bass is one of several key figures who paved the way for Harris and several other contenders for Biden’s vice-presidential pick. As a Los Angeles civic leader and the publisher of a major Black newspaper, Bass chronicled and commented on politics before entering the fray herself.

“I don’t think you can understand how we got here in 2020 if you don’t appreciate the way in which Black women have built this moment,” Jones told The Washington Post. “Kamala D. Harris doesn’t just drop from the sky. She’s a political figure whose career is very much linked to a history."

Bass’s chapter in that narrative starts in 1910, when she moved from her native South Carolina to Los Angeles and started working at the California Eagle, an influential Black weekly newspaper, according to Denise Lynn, a historian at the University of Southern Indiana. Bass and her husband became joint publishers, though she took over fully following his death in 1934.