Question: What American Baptist minister and activist led a movement organized in early 1963 by the Southern Christian Leadership Conference?
Context: The Birmingham campaign, or Birmingham movement, was a movement organized in early 1963 by the Southern Christian Leadership Conference (SCLC) to bring attention to the integration efforts of African Americans in Birmingham, Alabama.  Led by Martin Luther King Jr., James Bevel, Fred Shuttlesworth and others, the campaign of nonviolent direct action culminated in widely publicized confrontations between young black students and white civic authorities, and eventually led the municipal government to change the city's discrimination laws. Martin Luther King Jr. (born Michael King Jr., January 15, 1929 – April 4, 1968) was an American Baptist minister and activist who became the most visible spokesperson and leader in the Civil Rights Movement.  He is best known for his role in the advancement of civil rights using the tactics of nonviolence and civil disobedience based on his Christian beliefs and inspired by the nonviolent activism of Mahatma Gandhi. Ralph David Abernathy Sr. (March 11, 1926 – April 17, 1990) was a leader of the Civil Rights Movement, a minister, and a close friend of Martin Luther King Jr..  In 1955, he collaborated with King to create the Montgomery Improvement Association, which led to the Montgomery Bus Boycott.  In 1957, Abernathy co-founded, and was an executive board member of the Southern Christian Leadership Conference (SCLC).  Following the assassination of King, Abernathy became president of the SCLC.  As president of the SCLC, he led the Poor People's Campaign in Washington, D.C. during 1968.  Abernathy also served as an advisory committee member of the Congress on Racial Equality (CORE).  He later returned to the ministry, and in 1989 — the year before his death — Abernathy wrote, "And the Walls Came Tumbling Down: An Autobiography", a controversial autobiography about his and King's involvement in the Civil Rights Movement. Bearing the Cross: Martin Luther King, Jr., and the Southern Christian Leadership Conference is a 1986 book by David J. Garrow about Martin Luther King Jr., the Southern Christian Leadership Conference, and the American Civil Rights Movement.  The book won the 1987 Pulitzer Prize for Biography. James Edward Orange (October 29, 1942 – February 16, 2008) was a pastor and a leading civil rights activist in the Civil Rights Movement in America.  He was assistant to Martin Luther King Jr. in the civil rights movement.  Orange joined the civil rights marches led by King and Ralph Abernathy in Atlanta in 1963.  Later he became a project coordinator for Southern Christian Leadership Conference, drawing young people into the movement. Frederick Lee "Fred" Shuttlesworth ( born Fred Lee Robinson, March 18, 1922 – October 5, 2011), was a U.S. civil rights activist who led the fight against segregation and other forms of racism as a minister in Birmingham, Alabama.  He was a co-founder of the Southern Christian Leadership Conference, initiated and was instrumental in the 1963 Birmingham Campaign, and continued to work against racism and for alleviation of the problems of the homeless in Cincinnati, Ohio, where he took up a pastorate in 1961.  He returned to Birmingham after his retirement in 2007.  He helped Martin Luther King Jr. during the Civil Rights Movement. Frederick Douglas Reese, or F. D. Reese, (born November 28, 1929) is a civil rights activist, educator, and minister from Selma, Alabama.  Known as a member of Selma's "Courageous Eight," Reese was the president of the Dallas County Voters League (DCVL) when that organization invited the Southern Christian Leadership Conference and Martin Luther King Jr. to come to Selma to amplify the city's local voting rights campaign.  This campaign eventually gave birth to the Selma to Montgomery marches, which later led to the passage of the Voting Rights Act.  Reese was also president of the Selma Teachers Association, and in January 1965 he mobilized Selma's teachers to march as a group for their right to vote.  Reese retired from teaching and as of February 2015 was still active as a minister at Selma's Ebenezer Missionary Baptist Church. Bernard Lafayette (or LaFayette), Jr. (born July 29, 1940) is a longtime civil rights activist and organizer, who was a leader in the Civil Rights Movement.  He played a leading role in early organizing of the Selma Voting Rights Movement; was a member of the Nashville Student Movement; and worked closely throughout the 1960s movements with groups such as the Student Nonviolent Coordinating Committee (SNCC), the Southern Christian Leadership Conference (SCLC), and the American Friends Service Committee. The Alabama Christian Movement for Human Rights (ACMHR) was a civil rights organization in Birmingham, Alabama, United States, which coordinated boycotts and sponsored federal lawsuits aimed at dismantling segregation in Birmingham and Alabama during the Civil Rights Movement.  Fred Shuttlesworth, pastor of Bethel Baptist Church, served as president of the group from its founding in 1956 until 1969.  The ACMHR's crowning moment came during the pivotal Birmingham Campaign which it coordinated along with the Southern Christian Leadership Conference during the Spring of 1963. James Luther Bevel (October 19, 1936 – December 19, 2008) was a minister and leader of the Civil Rights Movement in the United States.  As the Director of Direct Action and of Nonviolent Education of the Southern Christian Leadership Conference (SCLC), he initiated, strategized, directed, and developed SCLC's three major successes of the era: the 1963 Birmingham Children's Crusade, the 1965 Selma voting rights movement, and the 1966 Chicago open housing movement.  He suggested that SCLC call for and join a March on Washington in 1963.  Bevel later strategized the 1965 Selma to Montgomery marches, which contributed to Congressional passage of the 1965 Voting Rights Act.
Answer: Martin Luther King Jr.