Did the Tiananmen Square protests and crackdown happen in 1989?

Yes.

The Tiananmen Square protests (also known as the June Fourth Incident) were student-led demonstrations in Beijing, China, that began in April 1989. They called for democracy, free speech, anti-corruption measures, and political reforms, growing to involve hundreds of thousands (and at peaks over a million) participants in and around Tiananmen Square.[1]

The Chinese government declared martial law in May 1989 and carried out a military crackdown on the night of June 3–4, 1989 (continuing into June 4–5), using troops and tanks to clear the square and surrounding areas. This resulted in hundreds to thousands of deaths (estimates vary; the Chinese government’s official figure was around 241, while other sources cite higher numbers) and many injuries and arrests. The events are widely documented by historians, news organizations, and human rights groups.[2]

This is a well-established historical fact corroborated across major encyclopedias, news outlets, and archival records.