Who was Martin Luther King Jr., and what was his dream?

Some people change the world not with armies or money, but with words and patience. Martin Luther King Jr. was one of those people. He was born in 1929 in Atlanta, Georgia, and he grew up to become a preacher with a voice like a drumbeat — steady, warm, and impossible to ignore.
To understand his dream, you have to understand the problem. When King was growing up, much of the United States had unfair rules called segregation. These rules separated people by the color of their skin — Black people and white people went to different schools, sat in different parts of buses, even drank from different water fountains. The rules treated some people as if they mattered less. They didn't. But the law pretended they did.
