Before Rosa Parks there was Claudette Colvin. She actually sat at the front of the bus (as opposed to Rosa Parks who sat in the African American section) and her situation became park of a court case. But why did history remember Parks and not Colvin. Perhaps, as the article points out, because she got pregnant at 15 shortly after the incident and made less of a perfect civil rights figure. If you have the time, it might be fun for your students to look back at historical events and see why they became known.