Chinese contributions at the history

One of the great contributions of China is the creation of the paper. Although used materials like stone, cloth or skin of animals, these were materials were high cost or much work, it was necessary to find a cheap material and easy to handle so that the paper was invented using twine, breakage of the unused material. According to Chinese history and traditions as invention Cai Lun (62-121A.D.) Eunuch or belonging to the Han Dynasty Dong.
Information:http://chineseculture.about.com/bl_index.htm