The Japanese spider crab is the largest arthropod in the world, with a leg span of up to 4 meters (13 feet).

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

During the Edo period, which lasted from the 17th to the mid-19th century, Japan was ruled by the Tokugawa shogunate and experienced a period of peace and stability.