It’s the 50th anniversary of Mississippi Freedom Summer: the 1964 campaign, led by the Student Nonviolent Coordinating Committee, to register large numbers of African Americans to vote. Not only hundreds of Black and white college students and other out-of-state volunteers but also thousands of Mississippians bravely joined the effort. Many endured arrests, beatings, bombings. Some were murdered. But in the process they embarrassed the U.S. on the world stage and moved the country to end Jim Crow. While that summer’s campaign focused on political rights, the organizing holds plenty of lessons for unionists. Some, like Larry Rubin, carried those lessons into the labor movement themselves.—eds.