books.google.co.jp - This is the fourth of six volumes designed to explore the history of Japan from prehistoric to modern times. Volume 4 roughly covers the years from 1550 to 1800, a short but surprisingly eventful period in Japanese history commonly referred to as Japan's Early Modern Age. At the start, much of the country...http://books.google.co.jp/books/about/The_Cambridge_History_of_Japan.html?hl=ja&id=ycdGHcKLcd8C&utm_source=gb-gplus-shareThe Cambridge History of Japan