known as mid-missouri. hosted by our mediacom cable partner, c-span recently visited many sites showcasing the city's rich history. learn more all weekend on american history tv. >>> well, the thing that excited me about being here today is the fact that it's june the 4th and the lewis and clark core of discovery passed through here just beyond those trees that you see over there. on june the 4th in 1804. that's 208 years ago. they were on their way to the pacific ocean, and as i say, they passed here and continued on up the missouri river. they followed the river up to the eastern slope of the rocky mountains. it was pre-louisiana purchase. thomas jefferson had wanted to send an expedition of 12 men out