TIL:Forest glass was produced in northwestern and central Europe from approximately 1000–1700 AD using wood ash and sand as the main raw materials and made in factories known as glasshouses. by whatilearned May 9, 2022, 4:48 pm Read more: https://en.wikipedia.org/wiki/Forest_glass What do you think? 12 Points Upvote Downvote approximatelyashCentralEuropefactoriesglassglasshousesmainmaterialsNorthwesternproducedRawSandTILTILForestToday I learnedwood See more Previous article TIL Postboxes have underground feet and aren’t just bolted to the floor. Next article What’s a skill everyone should have? One Comment Leave a Reply People in glass houses sink ships Log in to Reply Leave a Reply Cancel replyYou must be logged in to post a comment.