Did the Tiananmen Square protests and crackdown happen in 1989?

Yes.

The Tiananmen Square protests (also known as the June Fourth Incident) took place in Beijing in the spring of 1989, culminating in a military crackdown on or around June 3–4, 1989. Large-scale student-led demonstrations calling for political reform, anti-corruption measures, and other changes occupied Tiananmen Square and other locations; the Chinese government declared martial law and used the People’s Liberation Army to clear the square and surrounding areas, resulting in significant casualties (exact numbers remain disputed and are not officially acknowledged in detail by the Chinese government).

This is a well-documented historical event confirmed by contemporaneous reporting, eyewitness accounts, diplomatic records, declassified materials, and historical research.