From the first interview he recorded, 2015 TED Prize winner and MacArthur Fellow Dave Isay knew he’d found his calling: preserving the stories of everyday Americans. Since then, Isay has amassed hundreds of thousands of recordings, most of previously unheard or ignored voices, all speaking in their own words. The archives of StoryCorps -- which Isay founded in 2003 -- are included at the Library of Congress’ American Folklife Center, and now constitute the largest single collection of recorded voices in history.

StoryCorps invites friends, loved ones and strangers to conduct 40-minute interviews at intimate recording booths in Atlanta, Chicago, San Francisco, and (until 2011) New York, as well as in mobile studios nationwide. Offering moving and surprising glimpses into the hearts of often marginalized and forgotten subjects, the interviews are a familiar feature of NPR’s Morning Edition and Storycorps.org.

At TED2015, Isay shared an audacious wish for StoryCorps: to open up the format from its signature booths with a StoryCorps app that allows anyone to add to this "digital archive of the collective wisdom of humanity." The vision: to broaden this idea, and begin to take it global.