http://siberiantimes.com/science/casestudy/news/n0711-worlds-oldest-needle-found-in-siberian-cave-that-stitches-together-human-history/
http://www.dailymail.co.uk/sciencetech/article-3754332/The-oldest-needle-world-50-000-year-old-sewing-instrument-discovered-Siberian-Cave.html