In the late 1800s, workers organized unions to solve their problems. Their problems were low wages and unsafe working conditions. First, workers formed local unions in single factories. These unions used strikes to try to force employers to increase wages or make working conditions safer.
They felt that the national government would abuse their power without a list of rights that are guaranteed to the people.
I believe the answer is the urban workers and peasants.
The assassination of Martin Luther King Jr., leader of the Civil Rights Movement, takes place in April of 1968 when he was killed by James Earl Ray.
