Introduction to the ancient papermaking workshop: Ancient papermaking is the first of the four great inventions in ancient my country. In the Yuanxing year of the Eastern Han Dynasty (105 AD), Cai Lun successfully produced plant fiber paper suitable for writing from bark, bamboo, waste hemp and other raw materials after repeated experiments, which was called "Caihou Paper". After Cai Lun invented papermaking, he returned to his hometown and taught papermaking technology in Cai Lun's Bamboo Sea. To this day, there are still hundreds of local papermaking workshops in Cai Lun Bamboo Sea.