“文革”结束已经41年。研究“文革”的文章多如牛毛,但是笔者还没有看到研究“第三里程碑”的文章。“第三里程碑”的提出与取消反映了毛泽东对“文革”的认识,应是研究毛泽东晚年思想的重要内容。本文仅将此事的来龙去脉做初步的梳理,起到抛砖引玉的作用,希望得到读者与方家的指正。林彪首先提出“崭新的阶段”及对“时代”的定义1958年5月,在中共八届五中全会上,林彪被增选为中央委员会副主席、中央政治局 “Cultural Revolution ” has ended 41 years. Research “Cultural Revolution ” many articles, but I have not seen the study “third milestone ” article. The proposal and cancellation of “Third Milestone” reflects Mao Zedong’s understanding of “Cultural Revolution” and should be an important part of Mao Zedong’s thinking in his later years. This article only the ins and outs of the matter to do a preliminary sort, play a pioneering role, hoping to get the readers and the Founder correction. Lin Biao first proposed the definition of “new stage ” and “era ” In May 1958, at the Fifth Plenary Session of the Eighth Central Committee of the Communist Party of China, Lin Piao was selected as Vice Chairman of the Central Committee, the Central Political Bureau