  thumb|aeral photo of obi castle and central obi in nichinan  is a city in miyazaki prefecture, japan. the city was founded on january 1, 1950. as of november 1, 2009, the city has an estimated population of 57,866 and a population density of 108 persons per kmÂ². the total area is 536.12 kmÂ². ==geography and climate== nichinan is on japan's southernmost main island, kyÅ«shÅ«. the average annual temperature is 18.7 degrees celsius with average annual rainfall of 2573.5 ml. ==economy== mandarin oranges, ponkan, sweet peas, green peppers, kumquats, and rice are the main agricultural products of nichinan, a sector that employs 2,130 people. in addition, logging, particularly of obi cedar, takes place on 3,451 hectares of land.) fishing of tuna, bonito, and spiny lobster is another major industry. manufacturing is worth approximately Â¥47.2 billion per year. tourism draws over a million visitors each year. ==history== nichinan began as part of the fujiwara shÅen in the heian period. the city's history and development were heavily influenced by the history of obi town, a district of nichinan which still exists today. obi was one of the eight districts of hyÅ«ga, an old province in eastern japan, which was ruled by the itÅ clan based at obi castle. throughout the sengoku period, the itÅ clan's most serious rival was the neighbouring shimazu clan. the shimazu clan had unified satsuma province and Åsumi province under its control, and began to clash with the itÅ clan in 1570. the itÅ clan was finally defeated by the shimazu clan in 1578. after seeking help from then shÅgun toyotomi hideyoshi, the family's lands were r
Cities_in_Miyazaki_Prefecture Populated_coastal_places_in_Japan Port_settlements_in_Japan