Final answer:
Martin Luther King, Jr. was a key figure in the African American Civil Rights Movement, leading peaceful but powerful protests like the Montgomery Bus Boycott and the Birmingham campaign. His nonviolent approach and the 'Letter from a Birmingham Jail' became central narratives of the movement. His assassination in 1968 sparked further unrest and violence, showing deep divisions and the continued fight for racial justice.
Step-by-step explanation:
Martin Luther King, Jr. and the Civil Rights Movement
The most prominent leader of the African American Civil Rights Movement, Reverend Martin Luther King Jr., alongside the Southern Christian Leadership Conference (SCLC), spearheaded nonviolent protests across the South. The Montgomery Bus Boycott was a significant victory, leading to the Supreme Court ruling that segregated buses were unconstitutional. King's philosophy of nonviolent resistance was profoundly observed when peaceful protests in Birmingham were met with police violence, garnering international attention.
In 1963, King was incarcerated during the Birmingham campaign and authored the seminal "Letter from a Birmingham Jail," responding to criticisms from white clergymen and advocating for urgent action in securing civil rights. His leadership was abruptly ended with his assassination in 1968, which sparked nation-wide violence and highlighted the ongoing struggle for racial equality and the tensions within the movement.