Most of Africa is hot, so I'd say climate change
Answer:
The differences include:
Japanese feudalism wasn’t based on hierarchy while the European was based on hierarchy.
The Japanese system was based on Chinese Confucian law and Buddhism while the European system was based on Roman and Germanic law.
The similarities is that the two systems causes series of war fare and societal unrest.
The answer is gold speculators
Create the League of Nations , however America didn’t join but 42 countries did
