Fill in the Blanks MLK Fill in the Blanks 1#CHALLENGEOnline version A Fill in the Blanks game about Martin Luther King Jr. and his role in the civil rights movement. by Roots Black Essence 1 civil rights movement Mahatma Gandhi Martin Luther King Jr American Baptist minister assassination nonviolence civil disobedience Christian beliefs activist . ( 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 .