In April 15, 1989, the popular Chinese leader Hu Yaobang died of a heart attack in Beijing. Two years earlier, Hu had been cashiered from his post as general secretary of the Chinese Communist Party for being too liberal. Now, in the days after his death, thousands of students from Beijing campuses gathered in Tiananmen Square, in central Beijing, to demand that the party give him a proper sendoff. By honoring Hu, the students expressed their dissatisfaction with the corruption and inflation that had developed during the ten years of “reform and opening” under the country’s senior leader, Deng Xiaoping, and their disappointment with the absence of political liberalization. Over the next seven weeks, the party leaders debated among themselves how to respond to the protests, and they issued mixed signals to the public. In the meantime, the number of demonstrators increased to perhaps as many as a million, including citizens from many walks of life. The students occupying the square declared a hunger strike, their demands grew more radical, and demonstrations spread to hundreds of other cities around the country. Deng decided to declare martial law, to take effect on May 20.

But the demonstrators dug in, and Deng ordered the use of force to commence on the night of June 3. Over the next 24 hours, hundreds were killed, if not more; the precise death toll is still unknown. The violence provoked widespread revulsion throughout Chinese society and led to international condemnation, as the G-7 democracies imposed economic sanctions on China. Zhao Ziyang, the general secretary of the Chinese Communist Party, had advocated a conciliatory approach and had refused to accept the decision to use force. Deng ousted him from his position, and Zhao was placed under house arrest—an imprisonment that ended only when he died, in 2005.

A little over two weeks later, on June 19–21, the party’s top decision-making body, the Politburo, convened what it termed an “enlarged” meeting, one that included the regime’s most influential retired elders. The purpose of the gathering was to unify the divided party elite around Deng’s decisions to use force and to remove Zhao from office. The party’s response to the 1989 crisis has shaped the course of Chinese history for three decades, and the Politburo’s enlarged meeting shaped that response. But what was said during the meeting has never been revealed—until now.