bob swanson and bob taylor, we are thrilled to have several of the remarkable troublemakers with us tonight so please stand and be recognized. [applause] >> thank you. to tell the story of these remarkable people and others, leslie is the project historian for silicon valley archives, a fellow at the center for advanced studies of behavioral sciences at smithsonian national museum of american history. to introduce her i would like to share as our tradition five members. 35 mi. as described in her book, 14 wild years chronicles, two books published, sound of 7 valley upstarts filed in troublemakers and two children, please join me giving a warm welcome to leslie berlin. [applause] >> great to have you. >> leslie, enjoyed reading the troublemakers. you have been a chronicler of the valley history for two decades and you often quote steve jobs, you can't understand what is going on unless you understand what came before, for a place focused on creating the future why is silicon valley history important? >> it is hard to out speak steve jobs on that. i do believe you can't understand what is ha