Why is "Reactions to the 1989 Tiananmen Square protests and massacre" trending?

Wikipedia Overview

The 1989 Tiananmen Square protests and massacre were the first of their type shown in detail on Western television. The Chinese government's response was denounced, particularly by Western governments and media. Criticism came from both Western and Eastern Europe, North America, Australia and some east Asian and Latin American countries. Notably, many Asian countries remained silent throughout the protests; the government of India responded to the massacre by ordering the state television to pare down the coverage to the barest minimum, so as not to jeopardize a thawing in relations with China, and to offer political empathy for the events. North Korea, Cuba, Czechoslovakia, and East Germany, as well as many countries in Africa and Asia, supported the Chinese government and denounced the protests. Overseas Chinese students demonstrated in many cities in Europe, America, the Middle East, and Asia against the Chinese government.