Les Miserables is the name of the play. A man stole food to feed his starving family & was put in prison by the crooked police chief. Eventually he was released to find that the crooked police chief was now the mayor of the city where everyone was oppressed. He started a revolution and his army won. He went from rags to riches.
Black is the least reflective color because it absorbs all light
The use of slaves was reduced, because immigrants could fulfill the same roles as slaves in factories.