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

The Ashikaga era is a part of Japanese history.

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

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

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

The Heian period was a time when Japanese culture developed greatly.

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

Life in the Stone Age was greatly different from today.

New age technology is greatly changing our lives.

The ruins of the Iron Age are an important clue to understanding the life of that era.