Karate, another martial art that originated in Japan, has also become a popular sport and is practiced by millions of people around the world.

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

Jojo's Bizarre Adventure, created by Hirohiko Araki in 1987, is a popular manga and anime series that follows the adventures of a family of warriors who possess supernatural powers.