Japanese automakers have been leaders in developing fuel-efficient and low-emission vehicles, such as hydrogen fuel cell cars and plug-in electric vehicles.

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.

The Showa period, which lasted from 1926 to 1989, was marked by Japan's militarism and involvement in World War II.