Did the Tiananmen Square protests and crackdown happen in 1989?

Yes, the Tiananmen Square protests and subsequent crackdown happened in 1989.

The student-led demonstrations began in mid-April 1989, and the military crackdown (often referred to as the Tiananmen Square Massacre) occurred on June 3–4, 1989, when the Chinese government sent in troops and tanks to clear the square.