Yes, it is true that early humans had to endure changes in climate and environment, since things like global warming and cooling, along with major events like the Little Ice Age, meant that the temperatures in the world were changing dramatically.
Since people were given the option to "get now and pay later" with credit cards, more purchases were made and more people from every class were able to afford the same things. Consumerism was booming and the economy had a greater circulation of money, which was different to before when only the wealthy had certain things. I hope this answer helps
Answer:
revenge cause they deserved it plus it would cause the most japanese deaths considering how big and populated
