語呂合わせ日本史　語呂にゃん　中高の日本史年号の簡単暗記術

The era of Japanese history is hard to remember with this app, it has been introduced in the easy-to-remember pun.
Chaimashou easy to memorize in euphony combined surgery that does not tell at school.
Because after you memorize the era is also available test to become a testing ground, We in the history of testing and test preparation.