Clay: The History and Evolution of Humankind's Relationship with Earth's Most Primal Element

More than a third of the houses in the world are made of clay. Clay vessels were instrumental in the invention of cooking, wine and beer making, and international trade. Our toilets are made of clay. The first spark plugs were thrown on the potter’s wheel. Clay has played a vital role in the health and beauty fields. Indeed, this humble material was key to many advances in civilization, including the development of agriculture and the invention of baking, architecture, religion, and even the spa…