As these programmatic aspects of the Cultural Revolution were being put into place and regularized, the political battle to determine who would inherit power at the top continued and intensified. Tensions first surfaced at a meeting of the Central Committee in the summer of 1970, when Chen Boda, Lin Biao, and their supporters made a series of remarks that angered Mao Zedong. Mao then purged Chen as a warning to Lin. At the end of 1970 Mao also initiated a criticism of Lin’s top supporters in the military forces, calling them to task for their arrogance and unwillingness to listen to civilian authority. The situation intensified during the spring of 1971 until Lin Biao’s son, Lin Liguo, evidently began to put together plans for a possible coup against Mao should this prove the only way to save his father’s position.

During this period, Zhou Enlai engaged in extremely delicate and secret diplomatic exchanges with the United States, and Mao agreed to a secret visit to Beijing by the U.S. national security adviser Henry Kissinger in July 1971. That visit was one of the more dramatic events of the Cold War era and laid the groundwork for U.S. Pres. Richard Nixon’s trip to China the following February. At a time when the Vietnam War continued to blaze, China and the United States took major steps toward reducing their mutual antagonism in the face of the Soviet threat. Lin Biao strongly opposed this opening to the United States—probably in part because it would strengthen the political hand of its key architect in China, Zhou Enlai—and the Kissinger visit thus amounted to a major defeat for Lin.

In September 1971 Lin died in a plane crash in Mongolia in what the Chinese assert was an attempt to flee to the Soviet Union. The Chinese high military command who had served under Lin was purged in the weeks following his death.

Lin’s demise had a profoundly disillusioning effect on many people who had supported Mao during the Cultural Revolution. Lin had been the high priest of the Mao following, and millions had gone through tortuous struggles to elevate this chosen successor to power and throw out his “revisionist” challengers. They had in this quest attacked and tortured respected teachers, abused elderly citizens, humiliated old revolutionaries, and, in many cases, battled former friends in bloody confrontations. The sordid details of Lin’s purported assassination plot and subsequent flight cast all this in the light of traditional, unprincipled power struggles, and untold millions concluded that they had simply been manipulated for personal political purposes.

Initially, Zhou Enlai was the major beneficiary of Lin’s death, and from late 1971 through mid-1973 he tried to nudge the system back toward stability. He encouraged a revival and improvement of educational standards and brought numerous people back into office. China began again to increase its trade and other links with the outside world, while the domestic economy continued the forward momentum that had begun to build in 1969. Mao blessed these general moves but remained wary lest they call into question the basic value of having launched the Cultural Revolution in the first place. In Maoist thought it had always been possible for formerly wayward individuals to reform under pressure and again assume power.

During 1972 Mao suffered a serious stroke, and Zhou learned that he had a fatal cancer. These developments highlighted the continued uncertainty over the succession. In early 1973 Zhou and Mao brought Deng Xiaoping back to power in the hope of grooming him as a successor. But Deng had been the second most-important victim purged by the radicals during the Cultural Revolution, and his reemergence made Jiang Qing, by then head of the radicals, and her followers desperate to return things to a more radical path. From mid-1973, Chinese politics shifted back and forth between Jiang and her followers—later dubbed the Gang of Four—and the supporters of Zhou and Deng. The former group favored political mobilization, class struggle, anti-intellectualism, egalitarianism, and xenophobia, while the latter promoted economic growth, stability, educational progress, and a pragmatic foreign policy. Mao tried unsuccessfully to maintain a balance among these different forces while continuing in vain to search for a suitable successor.

The balance tipped back and forth—nudged by Mao first this way, then that—between the two groups. The radicals gained the upper hand from mid-1973 until mid-1974, during which time they whipped up a campaign that used criticism of Lin Biao and Confucius as an allegorical vehicle for attacking Zhou and his policies. By July 1974, however, economic decline and increasing chaos made Mao shift back toward Zhou and Deng. With Zhou hospitalized, Deng assumed increasing power from the summer of 1974 through the late fall of 1975. During this time Deng sought (with Zhou’s full support) to put the Four Modernizations (of agriculture, industry, science and technology, and defense) at the top of the country’s agenda. To further this effort, Deng continued to rehabilitate victims of the Cultural Revolution, and he commissioned the drafting of an important group of documents much like those developed in 1960–62. They laid out the basic principles for work in the party, industry, and science and technology. Their core elements were anathema to the radicals, who used their power in the mass media and the propaganda apparatus to attack Deng’s efforts.

The radicals finally convinced Mao that Deng’s policies would lead eventually to a repudiation of the Cultural Revolution and even of Mao himself. Mao therefore sanctioned criticism of these policies in the wall posters that were a favorite propaganda tool of the radicals. Zhou died in January 1976, and Deng delivered his eulogy. Deng then disappeared from public view and was formally purged (with Mao’s backing) in April. The immediate reason for Deng’s downfall was a group of massive demonstrations in Beijing and other cities that took advantage of the traditional Qingming festival to pay homage to Zhou’s memory and thereby challenge the radicals.

In the immediate wake of Deng’s purge, many of his followers also fell from power, and a political campaign was launched to “criticize Deng Xiaoping and his right-deviationist attempt to reverse correct verdicts [on people during the Cultural Revolution].” Only Mao’s death in September and the purge of the Gang of Four by a coalition of political, police, and military leaders in October 1976 brought this effort to vilify Deng to a close. Although it was officially ended by the 11th Party Congress in August 1977, the Cultural Revolution had in fact concluded with Mao’s death and the purge of the Gang of Four.