Udon, a type of thick noodle soup, is a popular Japanese dish that is often served with various toppings.

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.

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