The Showa period, which lasted from 1926 to 1989, was marked by Japan's militarism and involvement in World War II.
The Japanese flying squirrel is a small arboreal mammal that is native to Japan's forests and is known for its gliding ability.
The bullet train (Shinkansen), which began operation in 1964, was the first high-speed train system in the world and is still one of the fastest.