I may not be correct but I believe that Martin Luther King implied that if they were to protest with violent it would only result in more violence as a retaliation by the government. So by doing peaceful protest the government didnt have an actual solid reason to attack them, so when the government did enact violence on them it caught the attention of people around the world.
Manorialism was a very important element of the feudal society. It is defined as the economic ties between the nobility and the peasants who worked in their lands and represented the majority of the society in medieval times.
