After a discussion on History meta, we have decided we need to take steps to broaden the range of questions that are asked at our stack. Many countries, such as Japan, have a very long recorded history but relatively little history written in the English language.
Most of us on History SE are Anglophones, myself included. I am posting here because you have many intelligent and well-educated users who are familiar with SE, and speak both Japanese and English well.
Please help us to answer this question, and even better ask your own questions about the history of Japan, and answer them too!