[music plays] jackson, you have a new book called american radicals. What years does your book cover . Prof. Jackson the earliest event in the book is 1817. It covers 1823 to 1870s. It covers the period roughly from the 1820s to the 1870s. Susan this is described as the second American Revolution. Why is that . Prof. Jackson the radicals in my book were calling for a second American Revolution based on what the revolution we know, fought by their fathers generation many had grandfathers who fought in the revolution. They described that revolution as merely political. They felt it had accomplished a separation from england. It had accomplished the foundation of a new political system. But the social revolution they had in mind would have to follow that merely Political Revolution in order to really bring into American Life the ideals of the founding that had to do with equality, with justice, that were glaringly not part of lived american experience, even in this new land. That was supp