Pottery is one of the most enduring materials known to humankind. It is the oldest and most widespread art form that primitive humans would use the world over to make objects, pots, and bowls which is baked clay for their daily use. Pottery is made by forming a clay body into a objects of a required shape and heating it at a high temperatures, which removes all the water from the clay, and this induces a reaction that leads to permanent changes and increases the strength and hardness of the clay object. Some of the oldest pottery has been found in Japan and China, dated to at least 16,000 and 20,000 years ago. Pottery has also been of value for historical and literary records. The ancient Assyrian and Babylonian would inscribe information upon clay pottery tablets.