Hans Rosling, physician and cofounder of Gapminder shows us the History of world from a numerical perspective. Discover the history of email:A game in 4th grade to learn international political analysis and prepare for a peaceful world: See John Hunter’s TED talk too:In a city such as New York alone, there are more than 10 billion distinct products or services being traded. How such a complex system can work? The story of the Universe in 17 minutes, to understand how complex systems appear, from Big Bang to global social networks. 孫 子 兵 法 (Sūn Zǐ Bīng Fǎ) The Art of War by Sūn ZǐWritten during the VIth-IIth? centrury B.C.Please switch to French to read the translation by Father Amiot, in 1772. Sorry, this entry is only available in Français.