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.

Association football is the most popular sport in the world.

He thoroughly researched the history of that nation.

He is a famous composer.

He is a famous lyricist who has produced many hit songs.

He is a very excellent performer.