Finished Reading: The Substance of Civilization – Materials and Human History from the Stone Age to the Age of Silicon by Stephen L. Sass 21 September 2020 by particularkev The Substance of Civilization: Materials and Human History from the Stone Age to the Age of Silicon by Stephen L. Sass My rating: 3 of 5 stars View all my reviews Share this:TwitterFacebookTumblrPinterestRedditLinkedInPocketEmailPrintLike this:Like Loading... Related