He is good at piloting a triplane.

He wrote a caption for the picture.

He is interested in astronomy, especially in researching about Boötes.

He is good at playing the guqin.

I am learning Old English.

This antique clock is a keepsake from my grandfather.

This old document is very important for understanding our history.

Archaebacteria are one of the oldest life forms on Earth.

Mr. Furukyo is my best friend.

Pangu, who appears in Chinese mythology, is said to have created the universe.