Judo, a martial art that emphasizes throws and grappling techniques, was developed in Japan in the late 19th century and has become a popular sport around the world.
The Japan Open, a professional tennis tournament held annually in Tokyo, is one of the oldest and most prestigious tournaments in Asia.
The Showa period, which lasted from 1926 to 1989, was marked by Japan's militarism and involvement in World War II.
