China must learn from the tumultuous, decadelong Cultural Revolution and never allow such an event to happen again, the ruling Communist Party's official People's Daily said on the movement's anniversary.

Monday marked the 50th anniversary of the start of the Cultural Revolution, but there were no official commemorations and no signs the party plans to loosen its tight grip over the historical narrative of one of its most damaging episodes.

"We must never forget to draw lessons from the Cultural Revolution," the newspaper said in an opinion piece Tuesday, in a rare public mention of the 1966-1976 period when Mao Zedong declared class war, plunging China into chaos and violence.