The Ninth National Congress of the Chinese Communist Party was held in Beijing from April 1 to 24, 1969. This congress legitimized the erroneous theories and practices of the ``cultural revolution'' and reinforced the positions of Lin Biao, Jiang Qing, Kang Sheng and others in the CPC Central Committee. The guidelines of this congress were wrong, ideologically, politically and organizationally.

The Tenth National Congress of the Chinese Communist Party was held in Beijing from August 24 to 28, 1973. It perpetuated the ``Left'' errors of the Ninth Party Congress.