Kumamoto is a city located on the island of Kyushu, and is known for its historic castle and beautiful gardens.

The airbag, which was co-invented by Yasuzaburo Kobori and Allen K. Breed in the 1980s, has become a standard safety feature in automobiles worldwide.

Sumo wrestling is a traditional Japanese sport that has been practiced for over 1,500 years and is still popular today.