People forget that before the bronze age was the plaster age. What do you think the insides of all of the ancient pyramids in South America and Egypt are carved out of? Plaster work is perhaps one of the most ancient arts. Plaster is even pre-pottery (meaning it pre-dates pottery) and helped lead to both the discovery of fired clay ceramics and the architectural advancement of human society anywhere plaster came into use.
THE PLASTER AGE
Humans have been working plaster for over 11,000 years. plaster was used in the interior walls of homes until drywall and sheetrock came into modern use. Now considered almost a dying art, plaster artists are a rare breed indeed. One of the things the old style of plastering walls provided was a layer of resistance against fire in a time when candles and oil lamps were the nightlite for thousands of years before electricity.