In the 12th century, the samurai class emerged in Japan, with warriors serving as protectors for the aristocracy.

Akira, directed by Katsuhiro Otomo in 1988, is a classic anime film that helped to popularize the cyberpunk genre of science fiction.

The Showa period, which lasted from 1926 to 1989, was marked by Japan's militarism and involvement in World War II.