Evidence over hype
Korea's oldest firearm: Why 1377 and 1437 both remain possible
The Hwangja Hwatong carries its name, a maker and a supervising official in bronze. Its year is less precise: the official account leaves 1377 and 1437 open.
Source trail
Claim → sources → boundary
Dating
Korea's oldest firearm has something many old objects lack: an inscription naming the object, its maker and the official who supervised its manufacture. Yet the Korea Heritage Service announcement of September 21, 2026 leaves two possible manufacturing years, 1377 and 1437.
Discovery
The object is the Hwangja Hwatong, a small bronze gunpowder weapon found on Geumseongsan Mountain in Naju. According to the announcement, it was discovered during a mine-detection sweep ahead of trail construction in November 2023. The discovery and the public announcement are different events. This was not a firearm newly unearthed in September 2026.
What the evidence does not settle
The announcement leaves 1377 and 1437 as possible manufacturing years. It does not establish one exact year, the first firearm ever made in Korea, or the world’s first gun. The public release does not provide a complete laboratory dataset or independent replication.
Korea's oldest firearm has something many old objects lack: an inscription naming the object, its maker and the official who supervised its manufacture. Yet the Korea Heritage Service announcement of September 21, 2026 leaves two possible manufacturing years, 1377 and 1437.
The object is the Hwangja Hwatong, a small bronze gunpowder weapon found on Geumseongsan Mountain in Naju. According to the announcement, it was discovered during a mine-detection sweep ahead of trail construction in November 2023. The discovery and the public announcement are different events. This was not a firearm newly unearthed in September 2026.
Its identification and its unresolved date are also different matters. Researchers can have evidence for an early firearm without having enough evidence to choose one calendar year.
What is Korea's oldest firearm, according to the official account?
The Korea Heritage Service reports the Naju National Research Institute of Cultural Heritage's identification of the Hwangja Hwatong as the earliest surviving gunpowder weapon found in Korea. The release gives two possible dates, 1377 or 1437, based on the inscription, historical context and physical analysis. It does not establish the world's first gun or the first firearm ever made in Korea.
The announcement is an institution's account of its own object and investigation. It is the primary source for what the institute reported, rather than a peer-reviewed laboratory paper or an independent replication of the analysis. That distinction matters when reading a headline that says the firearm has been “confirmed”. The public release reports the conclusion, but it does not expose a complete dataset through which a reader can repeat the authentication.
What was found at Naju?
The official description gives precise measurements: the weapon is 23.75 centimetres long, has a bore diameter of 1.66 centimetres, and weighs 1,032 grams. It explains hwatong, or “fire tube”, as a gunpowder weapon used to fire arrows or shot.
The release records where the weapon was recovered, but not how it reached that spot, who last carried it, or whether it was used there in combat.
What does the Hwangja Hwatong inscription say?
The release records 28 characters in total: 27 arranged in six columns on the shaft socket and one on the muzzle. That accounts for the difference between references to a 27-character socket inscription and a 28-character inscription on the object as a whole.
The Korea Heritage Service's English translation reads:
In the twelfth month of the Jeongsa year, the Hwangja Hwatong was made. Its weight is one geun and 14 nyang. Supervised by Noksa An Hyu-bo; made by the artisan Seok.
This is the agency's published translation, not a fresh decipherment. It identifies Seok as the artisan and An Hyu-bo as the supervising official. The release explains that Noksa was the official's title. It also describes Hwangja as a class designation following the order of characters in the Thousand Character Classic.
The inscription is unusually helpful because these details occur together on the object. A named artisan and supervisor support the account of manufacture under official oversight. They do not, on their own, reveal the size of the workshop, how many weapons it made, or how this particular weapon was distributed.
The recorded weight and today's measured weight should also be kept in their original forms. The release gives traditional units in the inscription and grams for the surviving object. There is no need to assume an exact modern conversion to make the inscription informative.
Why can Jeongsa mean either 1377 or 1437?
The date is not missing from the inscription. The difficulty is that it uses a repeating calendar designation.
The official release explains Jeongsa as a year in the traditional sexagenary, or sixty-year, cycle. A cycle name does not uniquely identify one Gregorian year. It has to be considered with other evidence.
The announcement narrows the possibilities to 1377 or 1437. It connects 1377 with the establishment of the Hwatong Dogam, the Directorate of Gunpowder Weapons, under King U of Goryeo. It connects 1437 with King Sejong's overhaul of firearms. These are the historical contexts supplied by the institution, not two dates independently established by separate scientific tests.
Nor should the wording quietly change from “1377 or 1437” to “sometime between 1377 and 1437”. The first describes two proposed calendar matches. The second sounds like a continuous date range in which any intervening year is equally supported. That is not what the release says.
What does the physical analysis add?
According to the announcement, the object underwent compositional analysis and expert review. The release points to the rounded interior of the powder chamber and evidence in the bronze composition consistent with traditional casting methods as support for its dating.
This is a different kind of evidence from the inscription. The text records a name and a cyclical date. The object's construction and composition help researchers assess whether the object fits the early firearm identification and the proposed historical setting.
The public account does not provide enough detail to reconstruct every step of that assessment. It describes the rounded chamber as unlike those of improved firearms of Sejong's reign, yet it still retains 1437 as a possibility. A reader should not turn that comparison into a reason to eliminate 1437 when the institution itself does not do so.
The institute reports that inscription, form and composition support its identification and two-date assessment. Neither year is presented as a direct laboratory date. PSF has not independently authenticated the firearm.
What does “oldest” leave out?
“Earliest surviving gunpowder weapon found in Korea” is the scope of the institutional claim. Each part limits it.
“Surviving” concerns objects that remain available for study. “Found in Korea” identifies the geographical scope. The claim does not settle when the first Korean firearm was made, and it says nothing about which country invented gunpowder or firearms.
The release's assessment of significance rests on the combination of a known find location, a detailed inscription and a rare surviving early weapon. That is enough to make it worth examining. Expanding it into a world-first claim would make the account less accurate, not more informative.
The number of news articles covering the announcement does not expand that evidence either. Reports repeating the institute's findings can help readers find the story, but several reports of the same analysis are not several independent authentications.
What can be said with confidence?
The Korea Heritage Service reports a bronze firearm found in Naju in 2023, with an inscription naming its class, artisan and supervising official. It reports authentication work and identifies the weapon as Korea's earliest surviving example, while retaining two possible years.
The Hwangja Hwatong source guide separates the inscription, physical analysis and news coverage, with prompts for checking each claim. Other evidence-led articles are collected in the research archive.
There is no contradiction in recognising the object while leaving its exact year open. The inscription preserves a maker's name more precisely than it preserves a modern calendar date. An accurate account should keep that unevenness rather than force every detail to the same level of certainty.
Source
Korea Heritage Service, September 21, 2026: “Hwangja Hwatong,” a Gunpowder Weapon Found on Geumseongsan Mountain in Naju, Confirmed as Korea's Oldest Firearm. Institutional announcement reporting findings of the Naju National Research Institute of Cultural Heritage. Primary evidence for the institution's published account; not an independently reproduced laboratory study.
Frequently asked questions
Was the Hwangja Hwatong made in 1377 or 1437?
The Korea Heritage Service announcement retains both dates. Its Jeongsa year designation belongs to a repeating sixty-year calendar cycle, so the inscription alone does not identify one Gregorian year.
When was the firearm discovered?
According to the official release, it was found in November 2023 during a mine-detection sweep ahead of trail construction on Geumseongsan Mountain in Naju. The announcement was published on September 21, 2026.
Does the inscription have 27 or 28 characters?
The release reports 28 in total: 27 in six columns on the shaft socket and one on the muzzle.
Is it the world's oldest gun?
That is not the claim supported here. The institute identifies it as the earliest surviving gunpowder weapon found in Korea, not the world's first gun or the first firearm ever made in Korea.