In his first major civil rights action, Martin Luther King, Jr. led the Montgomery Bus Boycott. This started when Rosa Parks refused to give up her seat on a bus to a white man. She was arrested and spent the night in jail. As a result, Martin helped to organize a boycott of the public transportation system in Montgomery. The boycott lasted for over a year. It was very tense at times. Martin was arrested and his house was bombed. In the end, however, Martin prevailed and segregation on the Montgomery buses came to an end.