Assasination of prince, invasion, russia, germany
The Columbian Exchange greatly affected almost every society on earth, bringing destructive diseases that depopulated many cultures, and also circulating a wide variety of new crops and livestock that, in the long term, increased rather than diminished the world human population:)
Not sure if you want an example or not but I believe it’s a dictator
Answer:
80& of people were unemployment by 1933
to rebuild confidence in the nation's banking system