How did humans progress from bands of hunter-gatherers to the great civilizations of the ancient world?

At the beginning of the story, men were engaged in hunting-gathering, but with the Neolithic Revolution, this changed flatly, men began to live in large groups and agriculture emerged as a way of life. This activity managed to increase the amount of food available and from this the first great civilizations began to emerge.

thurgood marshall

explanation: in 1954, thurgood marshall and a team of naacp attorneys won brown v. board of education of topeka, kansas. in this landmark decision, the supreme court held that segregation in public education violated the equal protection clause of the fourteenth amendment.