09 · Northwest · a technology that did not arrive alone

Iron changes the frontier

Iron and bronze in Yongyeon-dong

Iron swords, axes and tools appeared in the same corridor through which coins and refugees travelled.

Museum documentation · free public access, no account required.

Specific historical recreation of Iron and bronze in Yongyeon-dong, Yongyeon-dong, Wiwon, northwestern peninsula basin, 3rd–2nd centuries BCE — **DECLARED VISUAL RECONSTRUCTION · EXISTING EDITORIAL RESOURCE · TRACEKEEPERS**
Generated reconstruction · Declared visual hypothesis
Declared visual reconstruction for museographic context; it is not a photograph of the original nor documentary evidence.

History and context

Northwestern peninsula assemblages show iron alongside bronzes and objects of Chinese contact. The new metal offered resistant edges and another productive scale, but it needed ore, fuel, furnaces and specialists.

The expansion of iron coincided with movements from Yan and with the consolidation of Wiman Joseon. Coincidence does not mean that a single person introduced the technology: innovations travel through networks and are adapted in local workshops.

Iron arrived in a landscape that already had bronze specialists. For generations, iron axes and knives coexisted with bronze daggers, mirrors and bells because each material occupied different supply chains and functions.

Population movements from Yan may have accelerated techniques and demand, but local production needed ore, charcoal, furnaces and learning. The technology did not travel inside a single suitcase nor with a sole founder.

Evidence and interpretation

Documented fact: Korean institutional history links the 3rd–2nd centuries BCE with iron expansion from the Warring States and records implements from Yongyeon-dong. Interpretation and caution: attributing the introduction of iron exclusively to Wiman oversimplifies a gradual process. Expanded documented fact: Historical syntheses and studies of the slender bronze dagger culture situate iron objects and Yan styles in the northwest during the 3rd–2nd centuries BCE. Expanded interpretation and caution: Yongyeon-dong does not demonstrate that Wiman personally introduced iron nor that bronze became obsolete.

Catalogue facts

Narrative date: 3rd–2nd centuries BCE
Location: Yongyeon-dong, Wiwon, northwestern peninsula basin
Material: Iron, bronze, charcoal and pottery
Context: Technological transition and border contact
Curatorial reading: The documented fact and its interpretation appear separately in the evidence block.
Coexistence: Prestige bronze and utilitarian iron appear together in Final Bronze/Early Iron assemblages.
Production chain: Casting and forging required fuel, thermal control and specialists distinct from those of bronze.
Mobility: The transition coincides with migrations and contacts from Yan, without a single demonstrable cause.
Documentary coverage: 3 museum, heritage, primary corpus or research sources for this stop.

A SHARED TOPIC, DIFFERENT MOMENTS

Objects connected through time

Follow a topic across the collections. A shared tag is a way to compare objects, not proof that one culture influenced another.

The order uses the midpoint of each approximate date range; ranges can overlap. Spacing does not represent elapsed time. Swipe, scroll or use the arrows. With the sequence focused, use ← / →, Home or End.

THE CURRENT OBJECT

Its date is not sufficiently established to place it on the timeline. We keep it here, separate from the dated objects.

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3rd–2nd centuries BCE

Iron changes the frontier

Gojoseon and early Korea

Technological synthesis of several objects, not a dated piece.

Current record

Iron3 dated objects

1 / 3In the centre: Before the Iberias

Also connected, without a comparable date (3)

These objects are not placed after the others: an unknown date does not mean a more recent object.

The workshop inside the ditchYayoi Japan · 4th century BCE–3rd century CE, peak in Middle and Late Yayoi
Tools in relationBatwa / Twa histories · ca. 1947
Weapons under the LakeCeltic worlds · Mainly 3rd–1st centuries BCE

You can scroll the first group without JavaScript. The other topics are also available below.

Bronze

Current object, without a comparable date: Iron changes the frontier.

Jue · c. sixteenth century BCE · Ancient China
Bull-leaping · c. 1600–1450 BCE · Greek worlds
Fu Hao’s burial goods · ca. 1200 BCE · Ancient China
Liding · 12th–11th centuries BCE · Ancient China
Talayotic sword · ≈1200–1000 BCE · destruction of the talayot towards 790 BCE · Iberians
Tribute to Assyria · c. 848 BCE · Phoenicians
Before Etruscans and Rome · ca. 850–800 BCE · Etruscans and Rome
The lute-shaped dagger · Towards 1000–400 BCE · Gojoseon and early Korea
Kushite king · c. 721–664 BCE · Nubia, Kerma and Kush
The great Greek krater of Vix · ≈530–500 BCE · Greek worlds
Scorțaru cauldron · 6th–5th centuries BCE · Thracians
Vix Tomb · c. 500 BCE · Celtic worlds
Yan knife-money in the Gojoseon sphere · 4th–3rd centuries BCE · Ancient China
A coin with the memory of a blade · 323–222 BCE · Gojoseon and early Korea
The blade became straight · 5th–1st centuries BCE · Gojoseon and early Korea
Geometry in very fine lines · 3rd–2nd centuries BCE · Gojoseon and early Korea
Eight voices in one hand · 3rd–2nd centuries BCE · Gojoseon and early Korea
The Shield that Did Not Fight · Around 350–50 BCE · Celtic worlds
Fibula from Lancia · ≈300–100 BCE · Iberians
A sky over the liver · End of the second–beginning of the first century BCE · Etruscans and Rome
Hand of Irulegui · First third of the 1st century BCE · Iberians
Thirty-nine buried bells · Buried towards the 1st century BCE–1st century CE · Yayoi Japan
Torreáguila fountain spout · 101–125 CE · Etruscans and Rome

Without a comparable date (not part of the chronological order):

Daegok-ri grave goods · from c. 5th century BCE · Gojoseon and early Korea
Early metallurgy · c. 1900–1500 BCE · Ancient China
Four offerers · Iberian period · individual dating according to catalogue · Iberians
The workshop inside the ditch · 4th century BCE–3rd century CE, peak in Middle and Late Yayoi · Yayoi Japan
Weapons under the Lake · Mainly 3rd–1st centuries BCE · Celtic worlds

Tools

Current object, without a comparable date: Iron changes the frontier.

Swanscombe handaxe · ≈425,000–375,000 years · Prehistory
Bilateral harpoon · ≈15,000 years · Magdalenian · Prehistory
Engraved stone from Çakmaktepe · PPNA · site proposal: ≈9600–8800 BCE, provisional · Prehistory
Grinding stone from Çakmaktepe · PPNA · ≈9600–8800 BCE, provisional proposal for the site · Prehistory
Nahal Hemar Knives · 8th millennium BCE · Pre-Pottery Neolithic B context · Prehistory
Gebel el-Arak knife · 3600–3200 BCE · Naqada II C–D · Ancient Egypt
Nippur Cubit · III millennium BCE · usually towards 2650 BCE; approximate · Sumer
Carnelian beads · ca. 2600–1900 BCE · Indus civilisation
Rubber before the stadium · c. 1600–1200 BCE for the oldest specimens · Maya worlds
Maya's cubit · 1330–1295 BCE · end of the 18th dynasty · Ancient Egypt

Without a comparable date (not part of the chronological order):

Bone needle · No individual dating published on this record · Prehistory
Canal and field · IV–III millennium BCE · Sumer
Copper and stone · ca. 3100–2700 BCE · Ancient Egypt
Early metallurgy · c. 1900–1500 BCE · Ancient China
Fawn spear-thrower · Middle Magdalenian · Prehistory
Ishango, without genealogical shortcut · More than 20,000 years; context ca. 25,000–20,000 BP · Batwa / Twa histories
Jenne-jeno contexts · ca. 250 BCE–1400 CE · Mande Worlds
Soma stones · Rigvedic strata; later ritual tradition · Vedic and later Indian worlds
The quarry remained visible · Mainly 6th–5th centuries BCE · Gojoseon and early Korea
The unfinished gesture · 1947 · Batwa / Twa histories
The workshop inside the ditch · 4th century BCE–3rd century CE, peak in Middle and Late Yayoi · Yayoi Japan

Metalworking

Current object, without a comparable date: Iron changes the frontier.

The Gold of Varna · Towards 4600–4200 BCE · Thracians
Before Phoenicia · 20th–18th centuries BCE · Phoenicians
Valchitran · second half of the 14th century–beginning of the 13th century BCE, according to NAIM; other publications use wider intervals from the Late Bronze. · Thracians
Gold at Kuntur Wasi · c. 800–550 BCE · Pre-Inca cultures
Condomina Earring · 6th century BCE · Iberians
Bow and arrows in a case · 5th–4th centuries BCE · Scythians and Saka
Coțofenești helmet · Second half of the 5th century – beginning of the 4th century BCE · Thracians
The Solokha gold comb · 4th century BCE · Greek worlds
Treasure of Jávea · 4th century BCE · Iberians
Falcata from Almedinilla · 4th–3rd centuries BCE · Iberians
Marina Alta Hoard · Jewellery: 5th–2nd centuries BCE; concealment probably around 80–73 BCE. · Iberians
Panagyurishte · late 4th century – early 3rd century BCE, towards 300 BCE · Thracians
The Shield that Did Not Fight · Around 350–50 BCE · Celtic worlds
Simancas-type belt buckle · Second half of the IV century–V century CE · Iberians
Moulds for gold · 9th–11th centuries CE · Mande Worlds
Gold rhinoceros · ca. 1220–1290; found in 1933 · Bantu-speaking worlds

Without a comparable date (not part of the chronological order):

Copper and stone · ca. 3100–2700 BCE · Ancient Egypt
Early metallurgy · c. 1900–1500 BCE · Ancient China
Four panoplies · No individual dating published on this record · Iberians
Piece-mold casting · c. 1600–1046 BCE · Ancient China
The workshop inside the ditch · 4th century BCE–3rd century CE, peak in Middle and Late Yayoi · Yayoi Japan
Weapons under the Lake · Mainly 3rd–1st centuries BCE · Celtic worlds

A closer look

About 1 min to read · 1 section. Further reading and sources · free access. Editorial review recorded: September 5, 2026.

A particular object marks the meeting of routes

The National Museum of Korea catalogue identifies a fourteen-centimetre copper-alloy coin from Yongyeon-dong, in Wiwon, with collection number Bongwan10420-1. It relates it to Yan emissions and to the circulation of the late Warring States. This record connects the site name with a verifiable piece, in addition to the general narrative about technology. The museum links the arrival of these coins with a horizon of iron-technique transmission; the coin, by itself, does not demonstrate that a furnace existed at the place where it was found.

Museum · National Museum of Korea · Chinese Coin, MyeongdojeonAccess recorded: September 5, 2026.

Location and territory

DEBATED LOCATION

Yongyeon-dong, Wiwon, northwestern peninsula basinLiaoning and northern Korea; the precise extent remains debated. The mark indicates the orienting centre of the scope, not a boundary or an exact point.

Sources and references

Expand this information and consult its sources

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History and context

Evidence and interpretation

Catalogue facts

Iron changes the frontier

Before the Iberias

Falcata from Almedinilla

Kabusanza, ca. 400

A closer look

A particular object marks the meeting of routes

Location and territory

Sources and references

Did you enjoy this exhibit?