The emoji, invented by Shigetaka Kurita in 1999, has become a popular form of communication and a ubiquitous feature of modern digital communication.

Death Note, created by Tsugumi Ohba and Takeshi Obata in 2003, is a popular manga and anime series that follows a high school student who gains the power to kill anyone whose name he writes in a special notebook.

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.