The earliest chinese paintings were not representational but ornamental; they consisted of patterns or designs rather than pictures. Early pottery was painted with spirals, zigzags, dots, or animals. It was only during the Warring States Period (475-221 BC) that artists began to represent the world around them. In imperial times (beginning with the Eastern Jin Dynasty), painting and calligraphy in China were among the most highly appreciated arts in the court and they were often practiced by amateurs—aristocrats and scholar-officials—who had the leisure time necessary to perfect the technique and sensibility necessary for great brushwork. Calligraphy and painting were thought to be the purest forms of art. The implements were the brush pen, made of animal hair, and black inks made from pine soot and animal glue. In ancient times, writing, as well as painting, was done on silk. However, after the invention of paper in the 1st century AD, silk was gradually replaced by the new and cheaper material. Original writings by famous calligraphers have been greatly valued throughout China's history and are mounted on scrolls and hung on walls in the same way that paintings are.
