'America I Am'

Monday - 1/19/2009, 3:46pm EST

0119_frank

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Today, of course we celebrate the birthday of Martin Luther King Jr., and tomorrow, Barack Obama will be sorn in as the first African American president.

By any measure, historic events. The National Constitution Center in Philadelphia has just opened a new exhibit "America, I Am" -- which looks at the contributions African Americans have made to the United States.

Earlier, we spoke to Dr. Steve Frank, vice president of education and exhibits at the National Constitution Center. He started out telling us about the exhibit.