[citation needed] Tamna-country was changed to Tamna-county in 1153, during the reign of King Uijong and Choi Cheok-kyeong was posted as Tamna-Myeong or Chief of Tamna.

[6]: 100  On Jeju, the peak of resistance came in 1931–32 when haenyeo ("sea women") from six eastern villages launched a protest against the Japanese-controlled Divers Association.

Fearing that the elections would further reinforce division, guerrilla fighters of the Workers' Party of South Korea (WPSK) reacted violently, attacking local police and rightist youth groups stationed on Jeju Island.

[15] The Northwest Youth League, a Korean government-sponsored watchdog group made up of refugees who had fled North Korea, actively repressed any and all "communist sympathizers" including a policy of shooting anyone entering or leaving the president's declared "enemy zone".

[16] A 1988 documentary by Thames TV, Korea: The Unknown War[17] and many activities and publications, including Sun-i Samch'on by Hyun Ki Young, by organizations and persons from within Jeju-do and around the world continue to attempt to shed the light on this event.

[citation needed] In 1895, Jeju-mok was redesigned as Jeju-Bu with a governor (Gwanchalsa) and Vice-governor (Chamsagwan) and a police agency was newly established, while in both Jeongui and Daejeong the offices of 'Gunsu' (county chief) were re-established.

In 1910, Jeongui and Daejeong were included in Jeju gun while Chuja-myeon was placed under the jurisdiction of Wando-gun, part of South Jeolla province.

It is considered a skill to be able to create a resilient doldam structure, using only gravity and the angular shapes of the rocks, that can resist Jeju's strong winds.

They earned their living from freediving, often all year round in quite cold water without scuba gear, in order to harvest abalones, conches, and a myriad of other marine products.

[45][46] The base was designed to be a mixed military-commercial port similar to those in Sydney and Hawaii, that could accommodate 20 warships and three submarines, as well as two civilian cruise ships displacing up to 150,000 tons.

Jeju residents, environmentalists, and opposition parties opposed the construction[47] claiming that environmental hazards will damage the "Island of Peace" designated as such by the government.

old language), responsible for conveying the entirety of the substance of a myth or folk tale, which, within the large majority of instances, occurs within the form of a proverb or philosophical statement.

legend of 99 valleys), historical circumstances responsible for a lack of individuals with talent within leadership remains displayed, expressing the geometrical destiny perspective.

The historical legends of the province generally concerned an individual of particular strength; however, the limitations of the island remain represented within the form of the alternative to the hero, the starving strong man.

[71] The Jeju economy has traditionally been supported by primary industry, agriculture and fishing, but tourism has taken a more and more important role as the island receives ten million visitors per year.

Jeju is also a home for key functions of Daum Communications,[73] a leading Korean internet site, and sole owner of Lycos until August 2010.

[75] Jeju's temperate climate, natural scenery, and beaches make it a popular tourist destination for South Koreans as well as visitors from other parts of East Asia.

There is a variety of leisure sports that tourists can take part in Jeju including golf, horse riding, hunting, fishing, mountain climbing, etc.

Some local products are popular with tourists, including Jeju's special tile fish and mandarin oranges, as well as souvenirs and duty-free shopping.

[82] Jeju Island, often compared to Hawaii, "is the winter destination for Asian tourist seeking warm weather and beautiful beaches.

The courses pass through small villages, cross beaches, wind through farms and orchards, twist through forests, and climb oreums ("low parasitic volcanoes") across Jeju Island.

Very small deposits of calcite are common in lava tubes and are more significantly developed as speleothems in Duck Creek cave in the U.S. state of Utah.

Seongsan Ilchulbong, also called 'Sunrise Peak', is an archetypal tuff cone formed by hydrovolcanic eruptions upon a shallow seabed about 5,000 years ago.

On the eastern seaboard of Jeju Island and said to resemble a gigantic ancient castle, this tuff cone is 182 meters high, has a preserved bowl-like crater, and displays diverse inner structures resulting from the sea cliff.

These features are considered to be of geologic worth, providing information on eruptive and depositional processes of hydromagnetic volcanoes worldwide as well as past volcanic activity of Seongsan Ilchulbong itself.

People can enjoy the royal azalea blossoms in spring, lush, green woods in summer, colorful foliage in fall, and a landscape of snow in winter.

[96] Jeju has three UNESCO World Heritage sites, and is "packed with museums and theme parks and also has horses, mountains, lava tube caves, and waterfalls with clear blue ocean lapping its beaches.

So all ordinary passport holders excluding those from Afghanistan, Cuba, Ghana, Iraq, Kosovo, Libya, Nigeria, Palestine, North Korea, Sudan, Syria, Somalia and Yemen can stay visa-free 30 days in Jeju, even if they normally require a visa for the South Korean mainland.

Their calculations of the crude incidence rate (CIR) and applying the intrinsic estimator (IE) for age and calendar groups revealed that a total of 2,345 cases of children had the fever that was one of the top illnesses.

[111] A rail tunnel to the island, linking it to the Korea Train Express network has been proposed but is currently on hold due to cost concerns and local opposition in Jeju, who are aware of an eventual loss of their indigenous traits.