Martin Luther King, Jr. (January 15, 1929 – April 4, 1968) was an American clergyman, activist and prominent leader in the African-American civil rights movement. His main legacy was to secure progress on civil rights in the United States and he is frequently referenced as a human rights icon today. King is recognized as a martyr by two Christian churches.

Martin Luther King, Jr., was born on January 15, 1929, in Atlanta, Georgia. He was the son of the Reverend Martin Luther King, Sr. and Alberta Williams King.

Growing up in Atlanta, King attended Booker T. Washington High School. He skipped ninth and twelfth grade, and entered Morehouse College at age fifteen without formally graduating from high school. In 1948, he graduated from Morehouse with a Bachelor of Arts degree in sociology, and enrolled in Crozer Theological Seminary in Chester, Pennsylvania, from which he graduated with a Bachelor of Divinity degree in 1951. King then began doctoral studies in systematic theology at Boston University and received his Doctor of Philosophy on June 5, 1955. A 1980s inquiry concluded portions of his dissertation had been plagiarized and he had acted improperly but that his dissertation still "makes an intelligent contribution to scholarship."
King married Coretta Scott, on June 18, 1953, on the lawn of her parents' house in her hometown of Heiberger, Alabama. King and Scott had four children; Yolanda King, Martin Luther King III, Dexter Scott King, and Bernice King. King became pastor of the Dexter Avenue Baptist Church in Montgomery, Alabama when he was twenty-five years old in 1954.

In 1964, King became the youngest person to receive the Nobel Peace Prize for his work to end racial segregation and racial discrimination through civil disobedience and other non-violent means. By the time of his death in 1968, he had refocused his efforts on ending poverty and opposing the Vietnam War, both from a religious perspective. King was assassinated on April 4, 1968, in Memphis, Tennessee. He was posthumously awarded the Presidential Medal of Freedom in 1977 and Congressional Gold Medal in 2004; Martin Luther King, Jr. Day was established as a U.S. national holiday in 1986.