50 years ago today Dr. Martin Luther King Jr. stood on the steps of the National Mall and delivered his iconic "I Have A Dream" speech to a crowd of over 250,000 gathered.

Midway through the speech, Dr. King began the famous "I Have A Dream" sequence that would later become synonymous with the civil rights movement. As ice cubes were passed out to the crowd by the Red Cross to help those in attendance find relief from the heat, Dr. King passionately called for a day when people "will not be judged by the color of their skin, but by the content of their character".