Chinese writing '8,000 years old'

Quoting from an article on the BBC:

"State media say researchers identified more than 2,000 pictorial symbols dating back 8,000 years, on cliff faces in the north-west of the country."

Would history books be re-written?

Quote from an article on a Chinese site:

"The Damaidi carvings, first discovered in the late 1980s, cover15 square kilometers with 3,172 cliff carvings, featuring 8,453 individual figures such as the sun, moon, stars, gods and scenes of hunting or grazing. "