(Gengxu February 20), March 27, 1970, the government issued a "notice on the inventory of five hundred sixteen" counter-revolutionary cabal. In In 1970, March 27, 2010, the CPC Central Committee issued a "notice on the inventory of five hundred sixteen" counter-revolutionary cabal. The notice said: "class enemies at home and abroad with our struggle is very complex, counter-revolutionary secret organization is not only a 'five hundred sixteen'", encouraging people to grab more of the "counter-revolutionary". So-called "five hundred sixteen" counter-revolutionary group, originally referred to a small organization called "the capital of five hundred sixteen Red Guards regiment" Beijing once existed. Clandestine activities of the organization in August 1967, sporadic the slandered attack Zhou Enlai flyers. , Mao Zedong, Yao Wenyuan assessment Tao Zhu, "People's Daily" published on September 8, 1967, two books, "a paper added a passage, raised five hundred sixteen organizers and manipulators, a conspiracy of counter-revolutionary group, should be thoroughly exposed. "May 6" project leading group was established in 1968, the central inventory, the head of Chen Boda, Hsieh Fu-chih, Wu Faxian as a member of the leading group. Lin Biao and Jiang Qing gang opportunity to many oppose the Central Cultural Revolution "against Lin Biao and Jiang Qing gang of cadres and the masses labeled" May 6 "elements. Trouble and destruction of the Lin Biao and Jiang Qing gang struggle inventory "May 6" Group not only serious expansion, but evolved into a big scuffle between national factions mass organizations, tens of millions of people brutally persecuted.