Did the Tiananmen Square protests and crackdown happen in 1989?

Yes, the Tiananmen Square protests and the subsequent military crackdown did happen in 1989.

The student-led demonstrations began in mid-April of 1989, calling for democracy, free speech, and government accountability. The protests culminated on June 3–4, 1989, when the Chinese government sent in the military (the People's Liberation Army) to clear the square, resulting in a violent crackdown and the deaths of hundreds, possibly thousands, of protesters and civilians.