I'll tell you the simple stuff, I hope this helps you. For Japan the leader was to be called an emperor or empress who could only be a part of the royal family if they were related to the Shinto sun goddess. As for Europe, the leader was to be called a king or a queen. Like Japan, not just anybody could become royalty. Kings and queens came from a long descent of an Imperial family........
I think that maybe people are saying different answers because there might have been many such laws. I will mention one example: the Diversity Visa Immigration: it means that people from Eastern Europe have a higher change of obtaining a visa due to a smaller population in the US than the western European Countries.
If you want good sources go to wikipedia and look at the sources used in the wikipedia article. DO NOT USE THE WIKIPEDIA ARTICLE ITSELF AS A SOURCE!
The answers are:
1. Britain interfered with U.S. trade.
3. The British imposed Embargo Act of 1807 hurt the American economy.
4. Great Britain attacked U.S. ports.
5. Britain attacked U.S. ports.
