books.google.com - Sometime about 30,000 years ago, somebody stuck a sharp rock into a split stick?and presto! The axe was born. Our inquisitive species just loves tinkering, testing, and pushing the limits, and this delightfully different book is a freewheeling reference to hundreds of customs, notions, and inventions...http://books.google.com/books/about/An_Uncommon_History_of_Common_Things.html?id=bcaXzXPP8ooC&utm_source=gb-gplus-shareAn Uncommon History of Common Things
