Thanks to Tim Tangherlini for the link to the [Smithsonian story on the Lykov family] of Russia who survived for forty years in Siberia without contact with civilization — they had fled deep into the forest to escape anti-religious pogroms by the Soviets. A nice addition to the story is the [Russian documentary on the Lykovs]. In a sense the Lykovs were a kind of time capsule.
[Smithsonian story on the Lykov family]: http://www.smithsonianmag.com/history-archaeology/For-40-Years-This-Russian-Family-Was-Cut-Off-From-Human-Contact-Unaware-of-World-War-II-188843001.html
[Russian documentary on the Lykovs]: http://www.youtube.com/watch?v=AyQIGgeeYno