He is writing a thesis on abiogenesis.

He is an expert in physical anthropology, conducting research on human evolution.

Natural language understanding is an important field of artificial intelligence.

The history of the Empire of Japan is very interesting.

The Empire of Japan, written as 大日本帝國 in Kyūjitai, was a nation that existed from 1868 to 1945.

The Imperial Japanese Army was a Japanese military force that existed from the Meiji era to the Showa era.

The Imperial Japanese Navy was once the navy of Japan.

The Tōhoku earthquake off the Pacific coast, which occurred on March 11, 2011, was the largest earthquake in Japanese history.

The Japanese Society for Rights of Authors, Composers and Publishers is an organization that protects the copyrights of musicians.