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Gwanghuimun

Gwanghuimun 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 Gwanghuimun rather than just read about it. In short: Gwanghuimun (Korean: 광희문; Hanja: 光熙門; lit. 'Bright Light Gate'; also known as Southeast Gate) is one of The Eight Gates of Seoul in the Fortress Wall of Seoul, South Korea, which surrounded the city in the Joseon period. The gate is also known as Namsomun (남소문; lit. 'South Small Gate').

Gwanghuimun — main illustration
Gwanghuimun — illustration

Key takeaways

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

Reference excerpt

Gwanghuimun (Korean: 광희문; Hanja: 光熙門; lit. 'Bright Light Gate'; also known as Southeast Gate) is one of The Eight Gates of Seoul in the Fortress Wall of Seoul, South Korea, which surrounded the city in the Joseon period. The gate is also known as Namsomun (남소문; lit. 'South Small Gate'). It was originally called Sugumun (수구문; 水口門; lit. 'Water Channel Gate').

History

Gwanghuimun was originally built in 1396, and was rebuilt from 1711 to 1719. It was the only gate to be left virtually untouched during the Japanese Occupation. However, it was largely destroyed during the Korean War, but was restored in 1976. Gwanghuimun was completed in September 1396 (the 5th year of King Taejo's reign) alongside other fortress gates. At this time, it was constructed between Heunginjimun and Mokmyeoksan (as well as Taraksan), located south of the Igansumun water gate, where the Namsomundongcheon stream meets the Cheonggyecheon stream. The wooden gate pavilion (munru) was built as a single-story structure, measuring 3칸 (kan) in the front and 2칸 on the sides, with a hip roof (Ujingak shape). It was primarily used by commoners; there is no historical record of a king using Gwanghuimun, except when the king fled to Namhansanseong in a palanquin during the Byeongja Horan (Manchu invasion).

Through various wars, all the gate pavilions of the Fortress Wall of Seoul were destroyed, except for Sungnyemun and Heunginjimun. King Sukjong and King Yeongjo reconstructed these destroyed pavilions, and Gwanghuimun was the very first to be rebuilt. In 1711 (the 37th year of King Sukjong's reign), Min Jin-hu proposed the reconstruction of Gwanghuimun, which was accepted, and the Geumwiyoung (Military Command), which was in charge of managing Gwanghuimun, began construction in February. At this time, instead of making it a double-story structure like Sungnyemun and Heunginjimun, it was planned as a single-story structure, following the precedent of the gates at Namhansanseong. By April 11 of the following year, the stone foundation (yuktuk) of 9칸 was rebuilt, and an arched gate (hongyemun) was installed. However, it was decided to rebuild the wooden pavilion later after securing enough timber, and the wood gathered up to that point was instead used for the reconstruction of Doneuimun . Based on Min Jin-hu's statement on January 25, 1719 (the 45th year of King Sukjong's reign) that "all gate pavilions were erected after the fortress wall was built at the beginning of the dynasty," it is believed to have been completed before that date, and a new hanging plaque (pyonaek) was installed in February. The traditional decorative coloring (Dancheong) was painted in 1744, the 20th year of King Yeongjo's reign. During the Japanese colonial period, due to a lack of proper management, the battlements (yeojang) of the pavilion collapsed, and hygiene issues arose as beggars loitered around the area. Consequently, in 1928, the Historical Relics Preservation Society demolished the wooden pavilion along with Hyehwamun, citing difficulties in management due to a lack of funds. The stone foundation was not demolished and remained intact even after the Korean War. In 1966, its demolition was debated again for the expansion of Toegyero, but it was ultimately decided to preserve it. In 1975, because it stood in the middle of the road like an island and obstructed the main road connecting Toegyero and Wangsimni, the gate was dismantled and restored 12 meters to the south. During this restoration, a new 12-평 (pyeong) gate pavilion was built, and the surrounding 200 pyeong was turned into a green space. The calligraphy for the hanging plaque at this time was written by Kim Eung-hyun. On February 17, 2014, it was opened to the general public for the first time in 39 years, and in April of the same year, the local district office introduced the 'Gwanghuimun Fortress Course' so that tourists could step inside the second-floor gate pavilion.

Architectural features The stone foundation (yuktuk) of Gwanghuimun measures 6 meters in height and 8.7 meters in width. Similar to other gates of the city, excluding Sungnyemun and Heunginjimun, it features a single-story wooden gate pavilion (munru). The height of this pavilion is 5.9 meters. The roof is built in the Ujingak shape (a hip roof structure) utilizing the choikgong style. Following the traditional iconography of the Four Auspicious Beasts (Sashindo), the ceiling of the arched entrance (hongye) features a Blue Dragon and a Yellow Dragon facing each other with a cintamani (yeouiju) between them, a design highly similar to the one found at Heunginjimun. On the sloping ridges (chunyewandu) of the roof, a decorative dragon head (yongdu) and seven ornamental japsang figurines are placed, which perfectly aligns with the architectural conventions of other single-story gate pavilions.

Usage

Ganmun (Intermediary Gate) The gates of the Fortress Wall of Seoul were strictly categorized into main gates (jeongmun) and intermediary gates (ganmun), with Gwanghuimun belonging to the latter. Consequently, when welcoming foreign envoys, diplomatic protocols dictated that Japanese envoys—who held a neighborly diplomatic relation under the traditional policy of Sadae kyorin—were required to enter the capital through Gwanghuimun, which functioned as a designated ganmun. Furthermore, there were significant differences in the daily opening/closing procedures and the deployment of guarding military forces. Unlike the main gates, which were heavily guarded by a fourth-senior rank Hogun officer and 30 gatekeepers (sumunbyeong), Gwanghuimun was guarded by two junior-sixth rank Bujang officers and 10 gatekeepers. The operational protocols also varied; while the main gates required both the royal Sunjeonpyoshin and Buheom tokens to be opened, Gwanghuimun could be opened with just the Gaemunpyoshin token. However, on days when the gate had to remain open continuously, the royal Sunjeonpyoshin token was dispatched to Gwanghuimun as well.

Sigumun (Corpse Gate)

… excerpt ends here. Continue reading the full article.

Illustrations

Gwanghuimun illustration
Gwanghuimun: Among Daedongyeojido, the Gwanghuimun part of the Daedongyeojido Island is emphasized with white boxes.
Among Daedongyeojido, the Gwanghuimun part of the Daedongyeojido Island is emphasized with white boxes.
Gwanghuimun: a piece of composition that was attached to the gate of light.Gwanghuimun Gate in the late Joseon Dynasty. There is still a gatekeeper.The image of the beginning of the Japanese colonial era. The cross-dressing is being torn down.A photo of Gwanghuimun taken inside the city in 1916. A cigarette sign and a rickshaw are seen below. The gatekeeper's cross-dressing is crumbling.A panoramic view of the Gwanghuimun Gate in 1916.
a piece of composition that was attached to the gate of light.Gwanghuimun Gate in the late Joseon Dynasty. There is still a gatekeeper.The image of the beginning of the Japanese colonial era. The cross-dressing is being torn down.A photo of Gwanghuimun taken inside the city in 1916. A cigarette sign and a rickshaw are seen below. The gatekeeper's cross-dressing is crumbling.A panoramic view of the Gwanghuimun Gate in 1916.
Gwanghuimun: Gwanghuimun Gate in the late Joseon Dynasty. There is still a gatekeeper.
Gwanghuimun Gate in the late Joseon Dynasty. There is still a gatekeeper.
Gwanghuimun: The image of the beginning of the Japanese colonial era. The cross-dressing is being torn down.
The image of the beginning of the Japanese colonial era. The cross-dressing is being torn down.

Worked examples

Example 1 — a first encounter with Gwanghuimun

Start with the simplest possible case. Write down what Gwanghuimun 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 Gwanghuimun 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 Gwanghuimun 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 Gwanghuimun

In research
Gwanghuimun 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 Gwanghuimun 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
Gwanghuimun is common in secondary-school and first-year university syllabi. It links to neighbouring topics Buildings and structures completed in 1396, Gates of Seoul, Rebuilt buildings and structures in South Korea, so understanding it makes those chapters shorter.
In everyday life
Look for Gwanghuimun 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 Gwanghuimun in 20 minutes

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

Frequently asked questions

What is Gwanghuimun in simple terms?

Gwanghuimun (Korean: 광희문; Hanja: 光熙門; lit. 'Bright Light Gate'; also known as Southeast Gate) is one of The Eight Gates of Seoul in the Fortress Wall of Seoul, South Korea, which surrounded the city in the Joseon period. The gate is also known as Namsomun (남소문; lit. 'South Small Gate').

Why does Gwanghuimun 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 Gwanghuimun?

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 Gwanghuimun.

Tags

  • Buildings and structures completed in 1396
  • Gates of Seoul
  • Rebuilt buildings and structures in South Korea

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