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Seoul City Wall

Seoul City Wall is a engineering 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 Seoul City Wall rather than just read about it. In short: The Seoul City Wall (Korean: 서울 성곽) or Hanyang Doseong (한양도성) is a defensive wall first built by the King Taejo of Joseon dynasty to defend the downtown area of Joseon's capital city Hanseong (한성; 漢城). It was designated as a Historic Site of South Korea in 1963, and is currently a tourist attraction around Downtown Seoul.

Seoul City Wall — main illustration
Seoul City Wall — illustration

Key takeaways

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

Reference excerpt

The Seoul City Wall (Korean: 서울 성곽) or Hanyang Doseong (한양도성) is a defensive wall first built by the King Taejo of Joseon dynasty to defend the downtown area of Joseon's capital city Hanseong (한성; 漢城). It was designated as a Historic Site of South Korea in 1963, and is currently a tourist attraction around Downtown Seoul.

History Construction of the Seoul City Wall was launched in 1395, and significant part of the whole City Wall was completed in 1396, including the Eight Gates. While the City Wall was continuously fortified through almost the entire history of the Joseon dynasty period, its history of fortification can be divided into three major periods during the 14th, 15th and 18th centuries. In the early era of Joseon, one of major function of the City Wall was as an administrative demarcation distinguishing the downtown area of the capital city named as Seong-jung (성중; 城中) or Doseong-an (도성 안; lit. 'inside the fortress'), from urban peripheral areas named as Seongjeosimni (성저십리; 城底十里; lit. '10 ri's around the fortress'). After Joseon suffered an invasion from Japan in the 1590s by Toyotomi Hideyoshi and another invasion almost 40 years later by the Qing Empire, the City Wall was redeveloped during late Joseon period to strengthen military functions. During the colonial era of Joseon under the Japanese empire, significant parts of the City Wall and its gates were demolished by the Japanese colonial government to modernize the cityscape of Seoul. One notable demolition is the west gate of the City Wall, Seodaemun. However, even through this period of harsh modernization, much of the City Wall survives to the present day in the Jongno and Jung districts of Seoul, it is now preserved as Historic Sites of South Korea. The City Wall is a famous tourist attraction, and still functions as a cultural boundary distinguishing Seoul's original city center of Downtown Seoul from other parts of Seoul city.

Characteristics The original walls, built in the late 14th century, were constructed of medium-sized round stones held together by mud. During King Sejong the Great's reign in the mid-15th century, a large-scale refurbishment work was carried out on the wall, including the replacement of earthen wall sections with rectangular stone sections. A major restoration in 1704 by King Sukjong rebuilt sections of the wall using large, uniform stone slabs which mark the final and last unique characteristic of Hanyangdoseong. The eastern section of Seoul was on lower ground than the other sections and was more susceptible to external attack. Thus, a lookout was added to the outside of the gate to reinforce its defense. A part of the walls in the section between Heunginjimun and Gwanghuimun was extended outside in a rectangular shape for such a purpose. Beacon mounds, another component of the defense system, were first established in 1394 and remained in operation until 1894. Signals sent across the country from one mound to another, using smoke by day and fire at night, were received by the beacon at the top of Namsan and conveyed to the Royal Palace. One lit beacon indicated normalcy, two indicated the appearance of an enemy, three if the enemy approached the border, four if the enemy crossed the border and five in case a battle started at the border.

Gates Four main gates and four auxiliary gates were built around Seoul in the late 14th century. The four main gates were Dongdaemun (East Gate), Seodaemun (West Gate), Namdaemun (South Gate) and Sukjeongmun (North Gate). The four auxiliary gates were placed in areas between the four main gates, with Souimun (in the southwest), Changuimun (in the northwest), Hyehwamun (in the northeast) and Gwanghuimun (in the southeast). At present, the following gates are either preserved in their original form or have undergone restoration work: Sungnyemun (South Gate) and Heunginjimun (East Gate) are designated as National Treasure No. 1 and Treasure No. 1, respectively.

Present condition Hanyangdoseong, completed in 30 years, was torn down in many parts due to city planning initiatives and the introduction of trams lines. However, significant sections of the wall remain. The best-preserved and well-known course is the Wall of Mt. Bukaksan, the 2.3-km trail which cuts through Sukjeongmun to Changuimun. Previously off-limits to the public after having been designated as a Military Reserve area due to its close proximity to Cheongwadae, it opened to the public in 2006. With very few alterations or artificial structures surrounding the area over the years, the natural environment remains relatively intact.

Trail tour The city of Seoul operates the Hanyangdoseong stamp trail tour, which runs along the wall, divided into six trails:

Baegak Mountain Trail Naksan Mountain Trail Heunginjimun Gate Trail Namsan(Mongmyeoksan) Mountain Trail Sungnyemun Gate Trail Inwangsan Mountain Trail

Gallery

See also The Eight Gates of Seoul Downtown Seoul Seongjeosimni Seoul City Wall Museum

References

External links Media related to Seoul City Wall at Wikimedia Commons Official website of Seoul City Wall by Seoul Metropolitan Government (available in English) Official website of Cultural Heritage Administration on Hanyangdoseong (in English)

Illustrations

Seoul City Wall illustration
Seoul City Wall illustration
Seoul City Wall illustration
Seoul City Wall illustration
Seoul City Wall illustration

Worked examples

Example 1 — a first encounter with Seoul City Wall

Start with the simplest possible case. Write down what Seoul City Wall claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Seoul City Wall 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 Seoul City Wall 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 Seoul City Wall

In research
Seoul City Wall appears in engineering 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 Seoul City Wall 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
Seoul City Wall is common in secondary-school and first-year university syllabi. It links to neighbouring topics 14th-century establishments in Korea, Buildings and structures completed in 1396, Castles in South Korea, so understanding it makes those chapters shorter.
In everyday life
Look for Seoul City Wall 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 Seoul City Wall in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Seoul City Wall 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 Seoul City Wall out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Seoul City Wall in simple terms?

The Seoul City Wall (Korean: 서울 성곽) or Hanyang Doseong (한양도성) is a defensive wall first built by the King Taejo of Joseon dynasty to defend the downtown area of Joseon's capital city Hanseong (한성; 漢城). It was designated as a Historic Site of South Korea in 1963, and is currently a tourist attractio…

Why does Seoul City Wall matter?

Because it connects several engineering 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 Seoul City Wall?

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 Seoul City Wall.

Tags

  • 14th-century establishments in Korea
  • Buildings and structures completed in 1396
  • Castles in South Korea
  • City walls in South Korea
  • Downtown Seoul
  • Historic Sites (South Korea)
  • Historic buildings and structures in Seoul
  • Military history of Seoul
  • Tourist attractions in Seoul
  • World Heritage Tentative List

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