This is a system set up by the founding fathers, people would want to stick with the passed down, original tradition.
It also gives low-population states a say in federal government where higher population states might overwhelm them, if its possible to that is. Plus, in my opinion at least, popular vote is pretty much useless
Congress or the Legislative Branch is responsible for making laws.
Their conflict occurred in the 11th century.
Hello! I believe the answer is the last one. Supported democratic South Korea against communist backed North Korea. Hope this helps!