   is the largest of the okinawa islands and the ryukyu (nansei) islands of japan. the island has an area of . it is roughly  south of the rest of japan. the city of naha, the capital of okinawa prefecture, is located there. the island's population is known as one of the longest-lived people in the world,okinawa exploration backgrounds - blue zones together with the sardinians whose island is located in the mediterranean sea (22 centenarians/100,000 inhabitants); in fact, there are 34 centenarians per 100,000 people, which is more than three times the rate in japan. ==history==  the time when human beings first appeared in okinawa remains unknown. since that time, there have probably been immigrants from china, japan, australia, and elsewhere. okinawa midden culture or shell heap culture is divided into the early shell heap period. in the former, it was a hunter-gatherer society, with wave-like opening jomon pottery. in the latter part of jomon period, archaeological sites moved near the seashore, suggesting the engagement of people in
Islands_of_Japan Okinawa_Islands World_War_II_sites_in_Japan World_War_II_sites_of_the_United_States