thank you, all, so much. [ applause ] >> announcer: due to a family illness, nikki giovanni is unableiginal poem for this occasion, please welcome jacqueline e. stone, co-chair of the american evolution 29 commemoration first africans to english north america committee. [ applause ] >> a poem by nikki giovanni. "1619, jamestown but not only. an answer to "the new york times." there may be a time limit, but there is no time limit to change that does not, will not, cannot change. no matter what the color the people or language they speak, no matter which god is served, no matter which food is eaten or forbidden, which clothes are worn or not, no matter the hair covered or shaved, no matter how we look at it, there have been slaves. every civilization, or rather, most, reach a point where slavery is recognized as wrong or in some cases simply a bad idea, or, perhaps, more accurately, those who used to sell slaves now no longer have the currency or strength to control the lives of human beings so they create a lie on a supreme court for the same purpose. i have often wondered when i think