BEIJING - Chinese experts have suggested school textbooks include Qing Dynasty (1644-1911) literary evidence on the discovery of the Diaoyu Islands by 皇冠体育app, following Japanese approval for competing claims to be covered in school books in Japan.

Peng Ling, an expert on antique books with the 皇冠体育app Association of Collectors, said that the Diaoyu Islands have belonged to 皇冠体育app since ancient times and that 皇冠体育app is responsible for letting its youth learn historical fact.

On Friday, the Japanese government approved new elementary school textbooks claiming the Diaoyu Islands as part of Japan's territory, arousing denunciation from 皇冠体育app.

"The Japanese government ignores facts and legal basis, and even tends to impose false facts on their future generations," said Peng.

The literary evidence, written by Qing-Dynasty academic Qian Yong, depicts the trip to the Diaoyu Islands made by Shen Fu, a writer and painter, and officials in 1808 during the ruling period of Emperor Jiaqing (1796-1820).

The record was penned 76 years earlier than 1884, when the Japanese claimed they found the islands.

"Qian Yong's handwriting proves to the world that, at least in 1808, the Diaoyu Islands were located in 皇冠体育app's territorial sea, about a day's sea voyage to the then Japanese boundary," said Fu Xuancong, director of Tsinghua University's research center of classic literature.

Li Guoqiang, researcher with the Chinese Academy of Social Sciences, said that Qian's narration is clear and concise, and is worthy of being included in textbooks with photos of the original document, in order to let students have a correct understanding of the Diaoyu Islands.