"Issues" deals with examples from before 1945, but they are grouped into six sections by period and region. Examples dealt with in "issues" are various in terms of the amount of previous research, such as the great number of accomplishments that have not been widely known until now and topics where the true state is practically not understood.

        The books and papers featured in the "literature" are limited to fundamental and easy to obtain materials. In addition, although it is focused on what was published in Japanese, depending on the theme, research can be further deepened from foreign language documents and primary materials.

©2014 Yoshimi OGAWA