riot
collective human behavior
demonstration
http://id.loc.gov/authorities/subjects/sh85036673
https://en.wikipedia.org/wiki/Demonstration_(political)
https://homosaurus.org/terms/demonstrations
https://www.wikidata.org/wiki/Q175331
Large public gatherings, marches, etc., organized for non-violent protest or affirmation, even though incidental disturbances or incipient rioting may occur.
demonstrations
political demonstration
rally
demonstration
demonstrationem