The Tokyo Marathon, first held in 2007, has become one of the most popular marathons in the world, with over 30,000 runners participating each year.

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.

Dragon Ball, created by Akira Toriyama in 1984, is one of the most popular and influential anime franchises of all time, and has inspired numerous spin-offs, video games, and merchandise.