It would be impossible to say.Clay has been around since long before anyone had a name.
Brown clay,blue clay,green,clay,white clay,and black clay.
Dried clay
one of them is clay
clay is homogeneous mixture
Answer Yes, clay helps plants as clay contains many elements and compounds in clay are useful for plants life.
clay was firlst discovered in mexico! duh1 im 10 and I even know that! IM BABY EINSTEIN!
Clay is a common componet of soil, it has always been known about, as long as humans have existed they have known about clay. The same answer could have been given if you had asked when was wood, or water discovered.
By voice, by stone inscriptions, by clay inscriptions, by visual signals.
They made the clay soldiers to Guard the first emperor of china's tomb. Farmers discovered the underground tomb when trying to dig a hole for a well.
The 'Poem of Aqhat' is recorded on clay tablets in cuneiform script. These tablets were discovered at the ancient city of Ugarit in modern-day Syria.
The short answer is yes. The Chinese made vases and similar products from fine clay which they exported to Europe. The English discovered the same type of clay in Britain. They called the clay "China clay" and the products made from it "fine China" after the country which pioneered the production technique.
They lay in heaps until modern times when they were discovered again.
Clays and clay minerals are found mainly on or near the surface of the Earth.
It was discovered on the Mullins Farm in Clay County, West Virginia.
Brown Betty is a round type of teapot that has a manganese type brown glaze which is also known as Rockingham glaze. These teapots came from a red clay that was discovered in Britain in 1695.
Nobody knows. Archeologists have found clay pots repaired by glue at burial sites from 4000 BC. The glue was made from tree sap.
Clay was never invented but it was discovered that you dampen it, sculpt it and finally bake it somewhere on the banks of the river Nile. It's not biodegradable as it is actually a kind of rock. It'll turn to dust eventually but only at the same speed a plastic bag will turn into gasses