On December 1, 1955, Rosa Parks refused to move to the back of a city bus in Montgomery, Alabama. She was not trying to start a movement. She was simply tired of social injustice and did not think a woman should be forced to stand so that a man could sit down. Yet her simple act of courage set in motion a chain of events that changed forever the landscape of American race relations. Now, forty years after her quiet defiance inspired the modern civil...