Japan, also known as the "land of the rising sun", is an archipelago of over 6,000 islands located in East Asia. Tokyo is the capital city and the yen is the official currency. Traditional Japanese culture is centered around rice-based cuisine, festivals, sumo wrestling, temples, and artistic traditions such as haiku poetry, noh and kabuki theater. Major religions in Japan include Shinto, Buddhism, and Christianity. Historically, Japan transitioned from an imperial system to military rule by shoguns to modernization under a restored emperor in the late 19th century.