Answer:
hundreds of demonstrators were killed
Explanation:
Hundreds, up to 10,000 people, where killed in the Tiananmen Square Massacre. The CCP denies that it ever happened, to this day.
Bleeding Kansas was in the time of 1854-1859 when it was decided if Kansas was going to be free or slave-owned and there was a lot of violence occurring.
The first Monday after the second Wednesday in December after the presidential election