His expression is very polite.

Learning about the history of the frontier is important for understanding our past.

During the Japanese rule in Taiwan, I learned the aboriginal language.

In history class, I learned about the 'barbarian woman' (historical term).

The role of the 'Riban' was historically very important.

This barbarian cloth has historical value.

This barbarian clothing is what the samurai wore during the Edo period.

The customs of this region are very interesting from a historical perspective.

It is said that this area was once inhabited by barbarians.

The concept of 'Bansei' is important in the ancient history of Japan.