abolitionist and someone who'll teach how to read and write and teach other slaves how to read and writewrite. my grandfather, shelter had kids and one of his kids were archie syphax who's my father. when i walk down the streets, i feel that i am in the shoes of those who where here before me. i feel empowered and i feel new strengths to want to carry on with the work that i am doing. >>> american history tv is marking this centennial of the national park service. now, from earlier this evening, we look back to a century of staurtship as it embarrasses on now conservation and preservation challenges. >>> 100 yaears ago, president woodrow wilson signed the law. this was a uniquely american idea of the concept's of the nation's beautiful. it is their right to visit these spaces. places like the grand canyon and yellow stone and the statue of liberty, they became familiar to us and many are known around the world. president obama on a visit to yosemite water falls told the crowd it is like the spirit of america itself is right here. today there are 84 million acres and 410 sites including 59 nat