The Edo period in Japan was a time when culture and art greatly developed.

The ruins from the Kofun Period are important for a deep understanding of Japanese history.

The Ashikaga era is a part of Japanese history.

The Asuka Period is a part of Japanese history, a time when culture and arts greatly developed.

The Muromachi period is a part of Japanese history, a time when many cultural changes occurred.

The Kamakura period was a very important time in Japanese history.

He is conducting research on historical kana usage.

Revisionism aims to change our understanding of past events.

One part is important.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.