The Great Kanto Earthquake of 1923 caused widespread destruction in Tokyo and killed over 100,000 people.

The Taisho period, which lasted from 1912 to 1926, was marked by political instability and social change, including the rise of labor unions and women's rights movements.

The Japanese government has implemented various policies and incentives to promote the development and adoption of eco-friendly vehicles, such as tax breaks and subsidies.