They generally vote for the democratic candidates
Robert Kennedy went ahead with the rally because he believed someone should tell the black and minority citizens of Indianapolis the news of King's death rather than just hear it on the news. He wanted to tell them again that King would not want them to react in hate, violence but to react with compassion and justice. Kennedy said the nation wanted healing, not more bloodshed.
In the picture/model shown, this can be used as evidence to argue that the Egyptians did live in settled communities. This picture shows that a person was planting fields and that he would be doing so for more than himself. He was most likely one of hundreds of plowmen used to plow the fields.