In December of 1955, a lady called Rosa Parksto give her seat to a white man. This made the bus driver angry and he called the police. The police took Rosa away. Martin Luther King, Jr. said this was wrong and told people they should stop it. He spoke to lots of people and told them what was happening. He said the law should beand they should be able to do the same things as white people. He called for the African-Americans toon the bus. His idea worked. The bus companies (公司) lost money. In December 1956, the Supreme Court (最高法院) made the city change the rules.

    Martin Luther King, Jr. traveled across America to meet lots of important people and told them about the problems. In 1963 he led a big group of African-Americans in Washington. Hethere. He said he had a dream that black and white people would live together . He was a really important person in history because he changed African-Americans' lives a lot. American people and people around the world remember him for what he has done.