"I have a dream. One day my four little children will not be judged by the color of their skin...."

So went the speech in Watshington D.C., in 1963, it was made by Martin Luther King, Jr., a leader of the black people in the United States.
Martin Luther King, Jr. was a minister. People called him Dr King.
In those days many white people discriminated against black people. 'For Whites Only' signs were everywhere in the south.
One day Ropsa Parks, a black woman, got on a bus and took a seat in the front. "Don't sit there!" shouted the bus drigver. He shouted again, "Move to the back, or I threw you off!" But the women did not move. She was arrested by the police.
This incident made black people angry. It also made them more sensitive to their place in society.
When he heard about the bus incident, Martin Luther King, Jr. said, "Listen, friends. We must win the right to take any seat on a bus."
In this way, their movement started. Many white people were against it. They did everything they could to stop it. But King and his followers did not give up. They finally won the right to take any seat on a bus.
King told the black people what to do. He worked very hard for their civil rights. He also worked for the peaceful coexistence of white and black people.
He said,

"I have a dream. One day the sons of former slaves and the sons of former slave-owners will be able to sit down together at the table of brotherhood."

In 1964 he got the Nobel Peace Prize. In April 1968, however, he was shot and killed. He was only 39 years old.