In 1959, Mr. Vivian met the Rev. James Lawson, who was teaching nonviolent strategies to members of the Nashville Student Movement. His students included Diane Nash, Bernard Lafayette, James Bevel and John Lewis, who all became prominent civil rights organizers.
They were also the nucleus of a successful three-month sit-in campaign at lunch counters in Nashville in 1960. As 4,000 protesters marched on City Hall, Mr. Vivian and Ms. Nash confronted Mayor Ben West, who acknowledged that racial discrimination was morally wrong.
“In less than three weeks, the lunch counters were desegregated,” David Halberstam, who covered the campaign for The Nashville Tennessean, later wrote in The Times.
A year after the Nashville campaign, Mr. Vivian replaced an injured member of the Congress of Racial Equality on the Freedom Ride to Mississippi, and submitted to his first beating. It was a fearful experience.
“Going to Mississippi in 1961 was a whole different world,” he was quoted as saying in “King Remembered” (1986), by Flip Schulke and Penelope O. McPhee. “You knew you could easily be killed there.”
After a year as a pastor in Chattanooga, Mr. Vivian helped organize Tennessee’s contingent for the 1963 March on Washington and was invited to join Dr. King’s staff.
Mr. Vivian’s civil rights work continued for a half century. He became director of the Urban Training Center for Christian Mission in Chicago in 1966 and dean of the Shaw University Divinity School in Raleigh, N.C., in 1972.