Fifty years ago, civil rights leader Rev. Martin Luther King Jr. led a march that changed the lives of all Americans. On August 28, 1963, King delivered his famous "I Have a Dream" speech to a crowd of more than 250,000 people in Washington. The event turned out to be a watershed moment in American history. VOA's Chris Simkins introduces us to some of the people who took part in the march five decades ago, and the impact it had on them.