Protesters wave flags on Beijing’s Tiananmen Square in the weeks leading up to the violent crackdowns on June 4. These photos were donated to Humanitarian China by the photographer, Jian Liu, then one of the student protesters.

Protesters wave flags on Beijing’s Tiananmen Square in the weeks leading up to the violent crackdowns on June 4. These photos were donated to Humanitarian China by the photographer, Jian Liu, then one of the student protesters.