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 bullet train (Shinkansen), which began operation in 1964, was the first high-speed train system in the world and is still one of the fastest.

Osaka is Japan's third-largest city and a major commercial and industrial hub, with a population of over 19 million people in the greater Osaka area.