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

Takamatsu is a city located on the island of Shikoku, and is known for its beautiful gardens, udon noodles, and art museums.

The oil crisis of the 1970s had a major impact on Japan's economy, leading to increased focus on energy conservation and alternative sources of energy.