One way is that medieval Europe had knights to protect people and followed the code of chivalry and medieval Japan had samurai
Idk if this is the event its asking for but: The “Red Summer” of 1919 marked the culmination of steadily growing tensions surrounding the great migration of African Americans from the rural South to the cities of the North that took place during World War I.
Whats the question////////?
It was F. Scott Fitzgerald whom coined the term "Jazz Age"