BEIJING, June 12  -- China said on Thursday UNESCO has accepted its application to register records of the 1937 Nanjing Massacre and Japan's wartime sex slaves on the Memory of the World Register.

The documents listed by China are first-hand materials that recorded Japanese invaders' atrocities in Nanjing from Dec. 13, 1937 to March 1, 1938, including the slaughter of Chinese soldiers and civilians and the conscription of "comfort women", said Foreign Ministry spokeswoman Hua Chunying at a daily press briefing.

The documents fit the criteria of the register, she said, adding that they should become the common memories of mankind and be cherished and protected by all mankind.

China submitted the application to cherish peace, respect human dignity and prevent the tragic and dark time from happening again, she said.

Japan has opposed the application.

The Japanese government's opposition shows its false reading of history, Hua said, adding that China will not drop its application.

She urged Japan to face up to, remember and correctly tackle issues left over from history, instead of attempting to deny or even whitewash its aggression history.

"We hope the Japanese government shows remorse for its past and corrects its misdeeds with sincerity and concrete actions, to create a peaceful future with its Asian neighbors and people of the world," she said.

Created in 1997, the Memory of the World Register protects the world's documentary heritage.

Historians estimate that 200,000 women were forced into sexual servitude by Japanese forces during WWII, most of them from countries invaded by Japan at that time.