TYO is the abbreviation for Tokyo, the capital of Japan. According to international conventions, the abbreviation of a country’s name is usually the first three letters of its English name or the initials of each word in its full name. Tokyo, also known as “Tokyo-to” in Japanese, is located in the central part of the Kanto Plain, facing Tokyo Bay, and serves as the central city of the Tokyo Metropolitan Area, one of Japan’s three major metropolitan areas. On March 28, the second year of the Meiji era, the capital of Japan was moved from Kyoto to Tokyo. Since the time of the Tokugawa shogunate, Tokyo has been one of Japan’s major cities, and after being renamed Tokyo during the Meiji Restoration, it has developed into a hub for various fields such as politics, economy, culture, and transportation in Japan. After continued development following World War II, Tokyo has not only become a global hub for commerce, finance, pop culture, and fashion, but also one of the most economically developed and prosperous cities in the world.