On September 5, 1905 a massive three-day riot erupted in Tokyo protesting the disappointing terms of the peace treaty that ended the Russo-Japanese War.
This was the first in a series of violent incidents that took place over the first two decades of the century, after which time social protests for the most part took on a more organized and less violent form. Also called the “Hibiya Riot” after the park where the protest began, this incident marked the first major social protest of the age of imperial democracy in Japan.