Martin Luther King Jr. first emerged as a leader of the civil rights movement when he?

Martin Luther King Jr. first emerged as a leader of the Civil Rights Movement during the Montgomery Bus Boycott in 1955. He was selected as the president of the Montgomery Improvement Association, which organized the boycott after Rosa Parks was arrested for refusing to give up her seat to a white passenger. King's eloquent speeches and commitment to nonviolent resistance galvanized support and drew national attention to the struggle for civil rights. His leadership during this pivotal event marked the beginning of his influential role in the movement.