The traditional colors of Japan trace their historical origins to the Twelve Level Cap and Rank System which was established in 603 by Prince Shōtoku and based on the five Chinese elements.
Japan | Empire of Japan | Prime Minister of Japan | Japan national football team | Emperor of Japan | Voice acting in Japan | Sea of Japan | Traditional Chinese characters | Municipalities of Japan | Culture of Japan | The Japan Times | Japan national rugby union team | Japan Maritime Self-Defense Force | Liberal Democratic Party (Japan) | Democratic Party of Japan | Japan Airlines | traditional Chinese medicine | Supreme Court of Japan | Important Cultural Properties of Japan | Bank of Japan | X Japan | Prefectures of Japan | Japan Railways Group | Japan Foundation | Imperial House of Japan | Government of Japan | Three Colors: Blue | Japan Self-Defense Forces | Japan Coast Guard | West Japan Railway Company |