Compléter MLK Fill in the Blanks 1#CHALLENGEVersion en ligne A Fill in the Blanks game about Martin Luther King Jr. and his role in the civil rights movement. par Roots Black Essence 1 Mahatma Gandhi assassination civil disobedience civil rights movement activist Martin Luther King Jr Christian beliefs American Baptist minister nonviolence . ( January 15 , 1929 ? April 4 , 1968 ) was an and who became the most visible spokesperson and leader in the from 1955 until his in 1968 . King is best known for advancing civil rights through and , inspired by his and the nonviolent activism of .