How was Martin Luther King a significant figure in the Civil Rights Movement?

Martin Luther King was an American clergyman, activist, humanitarian and a top leader in the African - American civil rights movement.

He is best known for his role in the advancement of civil rights using nonviolence

He was a speaker and expressed many of his ideas, open, to America

he used no violence and always peacefully protested, demonstrating to the world that African Americans were not the inferior vicious brutes that many at the time believed them to be