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Tan'gun

Tan'gun is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tan'gun rather than just read about it. In short: Tan'gun (Korean: 단군; Hanja: 檀君; pronounced [tan.ɡun]), also known as Tan'gun Wanggŏm (단군왕검; 檀君王儉; [tan.ɡun waŋ.ɡʌm]), was the legendary founder and first king of Gojoseon, the first Korean kingdom. He founded the first kingdom around the northern part of the Korean Peninsula.

Tan'gun — main illustration
Tan'gun — illustration

Key takeaways

  • Tan'gun belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Tan'gun to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Tan'gun from memory before moving on to harder problems.

Reference excerpt

Tan'gun (Korean: 단군; Hanja: 檀君; pronounced [tan.ɡun]), also known as Tan'gun Wanggŏm (단군왕검; 檀君王儉; [tan.ɡun waŋ.ɡʌm]), was the legendary founder and first king of Gojoseon, the first Korean kingdom. He founded the first kingdom around the northern part of the Korean Peninsula. He is said to be the "grandson of heaven", "son of a bear", and to have founded the first kingdom in 2333 BC, whose descendants was surname Park or Pai. The earliest recorded version of the Tan'gun legend appears in the 13th-century Samguk yusa, which purportedly cites Korea's lost historical record, Gogi (고기; 古記; lit. 'Ancient Record') and China's Book of Wei. However, there are no records related to Tan'gun in the current surviving version of the Book of Wei. Koreans celebrate Tan'gun's founding of Gojoseon, Korea's first dynasty, on 3 October as a national holiday known as National Foundation Day (Gaecheonjeol). It is a religious anniversary started by Daejongism (대종교; 大倧教), worshipping Tan'gun. Many Korean historians regard Tan'gun and Tengri as being etymologically identical.

Myth and interpretations

In Korean mythology, Tan'gun's ancestry legend begins with his grandfather Hwanin (환인; 桓因), the "Lord of Heaven". Hwanin had a son, Hwanung, who yearned to live on the earth among the valleys and the mountains. Hwanin permitted Hwanung and 3,000 followers to descend onto Taebaeksan (written as Myohyang-san in samguk sagi, but now believed to be Paektu Mountain), where Hwanung founded Sinsi (신시; 神市, "City of God"). Along with his ministers of clouds, rain and wind, he instituted laws and moral codes and taught humans various arts, medicine, and agriculture. Legend attributes the development of acupuncture and moxibustion to Tan'gun. A tiger and a bear prayed to Hwanung that they might become human. Upon hearing their prayers, Hwanung gave them twenty cloves of garlic and a bundle of mugwort, ordering them to eat only this sacred food and remain out of the sunlight for 100 days. The tiger gave up after about twenty days and left the cave. However, the bear persevered and was transformed into a woman. The bear and the tiger are said to represent two tribes that sought the favor of the heavenly prince. The bear-woman, Ungnyeo, was grateful and made offerings to Hwanung. However, she lacked a husband, and soon became sad and prayed beneath a "divine birch" tree (신단수; 神檀樹; shindansu) to be blessed with a child. Hwanung, moved by her prayers, took her for his wife and soon she gave birth to a son named Tan'gun Wang'gŏm. Tan'gun ascended to the throne, built the walled city of Asadal situated near Pyongyang (the location is disputed), and called the kingdom Joseon—referred to today as Gojoseon so as not to be confused with the later kingdom of Joseon that was established roughly 2000 years later. He then moved his capital to Asadal on Mount Paegak or Mount Gunghol. Tan'gun's biography reflected the interest of the people of Dangun Joseon (Gojoseon) at the time in establishing the legitimacy of the kingship of Gojoseon and the dignity of the country. The king of Gojoseon conducted a ritual in honor of his ancestral god every year. Soon, the myth of Tan'gun was the political ideology of the Gojoseon period, and the ritual had a function of political assembly.

Dates Emperor Tan'gun's rule is usually calculated to begin in 2333 BCE, based on the description of the Tongguk t'onggam (1485) contrary to the 40th year of the reign of the legendary Chinese Emperor Yao. Other sources vary somewhat, but also put it during Yao's reign (traditional dates: 2357 BC-2256 BC). The Samguk yusa states Tan'gun ascended to the throne in the 50th year of Yao's reign, while Annals of the Joseon Dynasty says the first year and Tongguk t'onggam says the 25th year.

Until 1961, the official South Korean era (for numbering years) was called the Dangi (단기; 檀紀), which began in 2333 BC. Followers of Daejongism considered 3 October in the Korean calendar as Gaecheonjeol. This day is now a public holiday in South Korea in the Gregorian calendar called "National Foundation Day". North Korea dates Tan'gun's founding of Gojoseon to the early 30th century BC. 15 March in the year 4340 of the Tan'gun Era is called "Royal Day Festival" (어천절; 御天節; Eocheonjeol), the day that the semi-legendary founder Tan'gun returned to the heavens.

Historical perception

Tan'gun began to attract attention during the late Goryeo dynasty, when Koreans fought wars against the Mongolian Yuan dynasty. During the Joseon period they were worshiped as the ancestors of the nation. In the Joseon dynasty, a shrine dedicated to Tan'gun of Gojoseon and King Chumo of Goguryeo was built in Pyongyang, and the Samseongdang (삼성당; 三聖堂), dedicated to the gods of Hwanin, Hwanung, and Tan'gun, was built. In Korea at the end of the 19th century, it was greatly emphasized to highlight the resistance of the Joseon people against Imperialist invasion, and it developed into a religion, Dangunkyo (단군교; 檀君敎). Tan'gun, who emerged as the central figure of nationalism, played a large role in the spiritual foundation of the independence movement during the Japanese colonial period. In addition, the history of the Tan'gun era was compiled by followers of Daejongism, such as 'Daedong Sagang' (대동사강) and 'Gyuwon Sahwa' (규원사화) and the independence movement, emphasizing the history of the Tan'gun period. The study of Tan'gun in South Korea focused on the historical significance of the Gojoseon society. In South Korea, Tan'gun Wanggeom is regarded as the head of the Gojoseon society, with many characteristics of the role of high priest. Wanggeom has the meaning of an overlord who governs the country. In North Korea, the Tan'gun and Tan'gun myths were previously established as the founding myth to justify the process of establishing the Gojoseon regime. However, after the excavation of the supposedly tomb of Tan'gun in 1994, North Korea changed its position and claimed that the Tan'gun myth reflects historical facts and that Tan'gun is a real person. The tomb of Tan'gun was reconstructed and became the Mausoleum of Tangun.

… excerpt ends here. Continue reading the full article.

Illustrations

Tan'gun illustration
Tan'gun illustration
Tan'gun: A South Korean postage stamp in 1956 (Dangi 4289)
A South Korean postage stamp in 1956 (Dangi 4289)
Tan'gun: Mausoleum of Tangun, in Kangdong County, North Korea
Mausoleum of Tangun, in Kangdong County, North Korea

Worked examples

Example 1 — a first encounter with Tan'gun

Start with the simplest possible case. Write down what Tan'gun claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tan'gun before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tan'gun ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tan'gun

In research
Tan'gun appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Tan'gun in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Tan'gun is common in secondary-school and first-year university syllabi. It links to neighbouring topics Deified Korean monarchs, Founding monarchs in Asia, Gojoseon monarchs, so understanding it makes those chapters shorter.
In everyday life
Look for Tan'gun outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Tan'gun in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Tan'gun means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Tan'gun out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tan'gun in simple terms?

Tan'gun (Korean: 단군; Hanja: 檀君; pronounced [tan.ɡun]), also known as Tan'gun Wanggŏm (단군왕검; 檀君王儉; [tan.ɡun waŋ.ɡʌm]), was the legendary founder and first king of Gojoseon, the first Korean kingdom. He founded the first kingdom around the northern part of the Korean Peninsula.

Why does Tan'gun matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tan'gun?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tan'gun.

Tags

  • Deified Korean monarchs
  • Founding monarchs in Asia
  • Gojoseon monarchs
  • Hongik Ingan
  • Korean gods
  • Korean mythology
  • Legendary monarchs
  • Legendary progenitors
  • Mountain gods
  • Musok deities
  • Mythological Korean kings
  • Tan'gun

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