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Meanwhile, in Japan, clay-fired pots began with Jomon Pottery from 14,500 BCE.) Most of this early ceramic ware was hand-made by coiling, then fired in bonfires.

Decoration was achieved by stamping, impressing and other simple methods.

Wedging can also help produce an even moisture content.

Once a clay body has been kneaded and de-aired or wedged, it is shaped by a variety of techniques. There are several materials that are referred to as clay.

In 2012, scientists announced that fragments of Xianrendong Cave Pottery (Jiangxi province) had been carbon-dated to 18,000 BCE, making them the oldest known pots in the world.A clay body can be decorated before or after firing; however, prior to some shaping processes, clay must be prepared.Kneading helps to ensure an even moisture content throughout the body.The impressed letters first appeared in 1860 with the year letter ‘O’.From 1886 to 1897 the first 12 characters were re-used. Again from 1898 the letters A to I are re-used but are easy to differentiate as they also have ENGLAND within the Wedgwood marks.The technical definition of pottery used by the American Society for Testing and Materials (ASTM) is "all fired ceramic wares that contain clay when formed, except technical, structural, and refractory products." Pottery is one of the oldest human inventions, originating before the Neolithic period, with ceramic objects like the Gravettian culture Venus of Dolní Věstonice figurine discovered in the Czech Republic date back to 29,000–25,000 BC, Sub-Saharan Africa and South America.