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Ep. 35The Thousand-Li Wall
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Episode 35

The Thousand-Li Wall

Yeon Gaesomun · 642
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Previously

In 598 and 612, Sui sent huge armies against Goguryeo again and again. In 612, the Goguryeo minister Eulji Mundeok spied out the enemy camp with a false surrender, lured the enemy deep into the country until they were exhausted, and then crushed the Sui army at the Salsu. Sui invaded twice more and was driven back both times, and in 618 it collapsed.

Characters

Yeon GaesomunNoble of Goguryeo’s Eastern Division.
Wears five swords
King YeongnyuGeonmu, king of Goguryeo.
Seeks peace with Tang
King BojangKing Yeongnyu’s nephew.
Becomes king in 642
YeoulSon of a family building the wall
Imagined character
Yeoul’s fatherA farmer who went to build the wall
Imagined character
Chen DadeTang envoy who came
to Goguryeo in 641

In 618, King Yeongyang died, and his half-brother Geonmu took the throne. He was King Yeongnyu.

King YeongnyuKing Yeongyang’s half-brother · Named Geonmu
King YeongnyuThe fighting
is over.
Now I will let
my people rest.

That same year in China, Sui fell and Tang rose.

In 622, Emperor Gaozu of Tang sent a letter proposing that each side send home the people scattered by the wars of the Sui era.

Tang envoyWe will send home the Goguryeo people here,
so release our people there as well.
King YeongnyuFind every Chinese person in the realm
and send them all home.

Goguryeo found every Chinese person in the kingdom and sent them home. They numbered more than 10,000.

Old manThank you…
Now I’m going home.

Emperor Gaozu of Tang was greatly pleased.

In 624, a Tang Daoist priest arrived bearing a statue of the Heavenly Worthy and lectured on the Laozi. The king and the people of the kingdom listened.

Tang Daoist priestThe Way that can be spoken of
is not the eternal Way…
King YeongnyuIf there were a way to guard the realm
without fighting…

Later, to congratulate Emperor Taizong of Tang on capturing the khagan of the Turks, King Yeongnyu presented him with the “Bongyeokdo,” a map of Goguryeo’s lands.

In 631, a Tang envoy
appeared on the old battlefield.

Tang sent Zhangsun Shi to gather and bury the bones of the Sui soldiers and to hold rites for them.

Zhangsun ShiTang envoy
Zhangsun ShiConsole the spirits
of the Sui soldiers.
And tear down
that gyeonggwan!

The gyeonggwan was a mound that victorious Goguryeo had raised during the war with Sui, by gathering the enemy dead and heaping earth over them.

YeoulAbout ten years old · Imagined characterYeoul’s fatherLiaodong farmer · Imagined character
YeoulDad, why are they
tearing that down?
Dad…It means Tang hasn’t forgotten.
That Sui lost here.
MessengerTang has torn down
the gyeonggwan, Majesty!
King YeongnyuSomeday, Tang
will surely come.
Build a long wall
on the western frontier!

King Yeongnyu called up the people and set them to building a long wall.

Liao RiverYalu RiverTaedong RiverGoguryeoTang(Tang China)Bohai SeaYellow SeaBuyeo FortressSinseongLiaodong FortressAnsi FortressBisa FortressPyongyang FortressThousand-Li Wall (presumed)The wall’s route and endsare debated (line approx.)

More than a thousand li, from Buyeo Fortress in the northeast to the sea. It took 16 years to finish.

The Samguk Yusa records that at this time “the men built the wall, and the women plowed the fields.”

YeoulDad,
I want to come too!
DadYou stay and help your mother
plow the fields.
Mother…Come home
safe and sound.

From every district, many people left for the western frontier.

They carried earth on A-frame carriers, poured it into wooden frames, and pounded it down layer by layer with rammers.

WorkersHeave-ho!
Pound it down!

Year after year went by. Little by little, the wall grew longer across the plains.

YeoulDad! Mom packed
you some millet rice.
Dad…You’ve already grown
up to my shoulder.

In 640, King Yeongnyu sent Crown Prince Hwan-gwon to Tang and asked that the sons of Goguryeo nobles be admitted to study at the Tang national academy.

The following year,
an envoy came from Tang.

In 641, the Tang envoy Chen Dade entered Goguryeo. At every fortress he reached, he showered the officials in charge with silk.

Chen DadeTang envoy · Director, Bureau of Operations
Chen DadeI love mountains and rivers.
If there’s fine scenery, I’d like to see it.
Fortress officialYes, yes!
Allow me to show you around!

The officials gladly guided him, and there was nowhere they did not take him.

YeoulShowing him every road
for a few bolts of silk…
DadDid he really come…
just for the scenery?

In this way, Chen Dade came to know every corner of Goguryeo’s roads and fortresses, mountains and rivers.

Whenever he met Chinese who had come to fight in the Sui era and never made it home, Chen Dade gave them news of their relatives back home.

Chen DadeYour elder brother is doing well
back home.
Old man…My brother…
is alive?

Everyone wept. Wherever he went, men and women lined both sides of the road to see him.

When Chen Dade reached Pyongyang, the king received him with a grand array of troops.

King YeongnyuYou have come a long way.
Chen Dade…Spears, so many.
Flags, so many.

The people of Goguryeo did not realize he had come to spy out the kingdom’s inner workings.

Back home, Chen Dade reported to Emperor Taizong of Tang that Goguryeo was badly frightened by the news of Gaochang’s fall.

Emperor Taizong of TangIf we strike Liaodong, they’ll throw
the whole kingdom into its defense.
Then, if we strike Pyongyang by sea…
it won’t be hard.

But he said that since the districts of Shandong (eastern China) had not yet recovered from their ruin, he would not burden the people.

In the 1st month of 642, King Yeongnyu put Yeon Gaesomun, noble of the Eastern Division, in charge of building the wall.

A new overseer
came to the wall.

His father, noble of the Eastern Division, had served as Daedaero. When his father died, he succeeded him as noble.

Yeon GaesomunNoble of the Eastern Division · Overseer of the wall
Yeon GaesomunThis wall is Goguryeo’s backbone!
Hurry!

Among the workers, this story went around about the new overseer.

They say he was born
in the water…
That’s why his surname is “Yeon” (淵).
It means “deep pool.”

The Samguk Sagi records that he bewitched people by claiming he had been born in the water.

This was earlier, when his father died. The nobles would not let him succeed, saying he was cruel and violent by nature.

Yeon GaesomunI beg you, only let me
take up the post.
If I fail, cast me out,
and I will bear no grudge.

Taking pity on him, they agreed.

Yeon GaesomunAre you afraid?
Yeoul…Yes, sir.
Then hurry.
If the wall is late, Tang will come.

The Samguk Sagi records that he wore five swords on his body, so that the people around him dared not look up at him.

The Samguk Sagi records that after he took up the post he behaved so brutally that the nobles and the king secretly plotted to do away with him.

NobleIf we leave Gaesomun be,
the kingdom is in danger.
King Yeongnyu…Let no one
know of this.

But the plot leaked out.

In the 10th month of 642, under the pretense of holding a military review, Yeon Gaesomun gathered all the troops of his division.

Yeon GaesomunWelcome, welcome.
Today I’ll show you my troops.

He then laid out a lavish spread of wine and food south of Pyongyang Fortress and invited the ministers to watch with him.

Once all the ministers had gathered, Yeon Gaesomun’s soldiers killed every one of them. They numbered more than a hundred.

From there he galloped straight into the palace.

King Yeongnyu
lost his life that day.

King YeongnyuNow I will let my people rest.

It was the twenty-fifth year of King Yeongnyu’s reign.

The news spread like the wind, all the way to the wall construction site in the west.

MessengerSomething terrible
has happened in the capital!
YeoulThey say the king…
is dead.
DadShh! Don’t go
talking about that.

Yeon Gaesomun set Jang, son of King Yeongnyu’s younger brother King Daeyang, on the throne. He was King Bojang.

King BojangKing Yeongnyu’s nephew · New king of Goguryeo
King Bojang…Do as you think best.
Yeon GaesomunLeave the affairs of state
to me, your Mangniji.

He made himself Mangniji, a post like Tang’s Minister of War and Director of the Secretariat rolled into one.

Now he issued orders far and near and ran the affairs of state as he pleased.

GuideThe Mangniji is passing!
Clear the way!

The Samguk Sagi records that whenever he mounted or dismounted his horse, he made a noble or a general lie face down on the ground and stepped on his back.

In the 3rd month of 643, Yeon Gaesomun addressed King Bojang.

The three teachings are like the three legs of a cauldron:
not one of them may be missing.

三敎譬如鼎足 闕一不可 — Samguk Sagi, 2nd year of King Bojang

Yeon GaesomunConfucianism and Buddhism flourish, but Daoism is still weak.
Send envoys to Tang and seek out Daoism.
King BojangYou are right.

Emperor Taizong of Tang sent eight Daoist priests, including Shuda, along with Laozi’s Daodejing. The king was delighted and lodged them in Buddhist temples.

BodeokMonk of Ballyongsa Temple
BodeokIf you exalt Daoism…
the kingdom will be in danger.
King BojangWelcome, welcome!

The Samguk Yusa tells that Bodeok, a monk of Ballyongsa Temple, tried many times to dissuade the king, but the king would not listen.

Earlier, in the 11th month of 642, Emperor Taizong of Tang had heard of King Yeongnyu’s death and mourned him in the palace garden.

Zhangsun WujiMinister of Emperor Taizong
Emperor Taizong of TangGaesomun killed his king and runs the state
as he likes. I cannot let it stand.
Zhangsun WujiBe patient a while, Majesty. Wait for them to grow arrogant;
it will not be too late to strike then.
…Very well.

Taizong sent an envoy to invest King Bojang as “King of Goguryeo.”

And he waited
for Goguryeo to grow arrogant.

YeoulDad, will this wall
protect us?
Dad…It will.
We built it.
Yeon GaesomunIf the wall is late, Tang will come.

Under the western sky, the wall was not yet finished.

Some called him a traitor who killed his king; others called him a hero who defended the kingdom against Tang.

Before the wall is even finished,
in 645, Emperor Taizong of Tang
comes in person with a great army.

End of Episode 35

History Notes

The scenes in this story are based on these records and sites.

  1. Mountain fortress on Daheishan, DalianMountain fortress on Daheishan, Dalian, China · Thought to be Goguryeo’s Bisa Fortress

    Where Was the Thousand-Li Wall?

    The Samguk Sagi records that in 631 King Yeongnyu called up the people and began building a long wall that ran more than a thousand li from Buyeo Fortress in the northeast to the sea, and that it was finished after 16 years. A legend from the “Goryeo Gogi” (Old Records of Goguryeo), quoted in the Samguk Yusa, says the man who proposed building the wall was Gaegeum (Yeon Gaesomun). Many scholars place Buyeo Fortress around today’s Nong’an in Jilin Province, China, and the seaward end around Bisa Fortress (today’s Dalian) at the tip of the Liaodong Peninsula, but the exact route of the wall has not yet been fully established. A 1971 Chinese survey reported the remains of an earthen wall about 6 m wide and 2–3 m high; because no gates or watchtowers were found, some scholars believe it was a wall linking existing mountain fortresses to slow the enemy’s advance.

    Samguk Sagi, Goguryeo Annals, King Yeongnyu · Samguk Sagi, Goguryeo Annals, King Bojang
  2. The Gyeonggwan: The Mound Tang Tore Down

    A gyeonggwan (京觀) was a great mound that the victors of a battle raised by gathering the enemy dead and heaping earth over them, a sign proclaiming their victory far and wide. The Samguk Sagi records that in 631 Tang sent Zhangsun Shi, Sima (adjutant) of Guangzhou, to gather and bury the bones of the Sui soldiers and hold rites for them, and then tore down the gyeonggwan that Goguryeo had built at that time. The Old Book of Tang says that King Yeongnyu, fearing his kingdom would be attacked, then built the long wall. However, the Zizhi Tongjian dates the Tang envoy’s arrival in Goguryeo to the 8th month of 631, so some studies hold that the wall building, begun in the 2nd month, came first. Since no one knows where the gyeonggwan stood or what it looked like, this episode draws it as a grass-covered earthen mound.

    Samguk Sagi, Goguryeo Annals, King Yeongnyu · Old Book of Tang, “Account of Goguryeo”
  3. Yeon Gaesomun’s Family

    His family name was Yeon (淵). Chinese histories wrote it as Cheon (泉) to avoid the personal name of Emperor Gaozu of Tang, Li Yuan, and the Nihon Shoki called him “Iri Kasumi” (伊梨柯須彌). The Samguk Sagi says that his father was the noble of the Eastern Division (some say the Western Division) and served as Daedaero, and the epitaph of his eldest son, Namsaeng, records that his grandfather Jayu and his father Taejo both served as Mangniji. Some scholars link the story that he claimed to have been born in the water to a tradition that the family’s founder came out of the water, or to his surname Yeon, meaning “pool.”

    Samguk Sagi, Biographies, Gaesomun · Epitaph of Cheon Namsaeng
  4. Chilseong Gate of Pyongyang Fortress (early 20th century)Chilseong Gate, Pyongyang Fortress · Early 20th-century photo (the gate as rebuilt in the Joseon era)

    The Coup of 642

    The Annals of the Samguk Sagi say only that in the 1st month of 642 the king put Gaesomun, noble of the Eastern Division, in charge of building the wall, and that in the 10th month Gaesomun killed the king. The Biographies, following the Chinese histories, say that when the nobles and the king tried to get rid of him, he laid out wine and food south of the fortress on the pretext of a military review, invited the ministers and killed more than 100 of them, then entered the palace and killed the king (the Nihon Shoki gives more than 180 and dates the event slightly differently). He made King Yeongnyu’s nephew Jang king and made himself Mangniji. Yet the biography of Kim Yu-sin in the same Samguk Sagi calls him “Taedaedaero” in that year. Many scholars see the coup as a clash between King Yeongnyu, who sought good relations with Tang, and Yeon Gaesomun, who wanted to stand firm against it; Emperor Taizong of Tang later used the coup as a pretext for the war of 645.

    Samguk Sagi, Goguryeo Annals, King Yeongnyu · Samguk Sagi, Biographies, Gaesomun · Nihon Shoki
  5. Traitor or Hero?

    In the Samguk Sagi, Kim Bu-sik cites the remark of Wang Anshi of the Song dynasty that “Gaesomun was no ordinary man,” yet judges that “he too was a man of talent, but he did not serve his country by the right path; he was cruel and violent, did as he pleased, and ended in great treason.” During the period of Japanese Colonial Rule, Sin Chae-ho praised him as a great revolutionary, and Bak Eun-sik as a hero who defended the nation. Today, historians weigh his leadership in repelling the Tang invasions together with the way his coup and his relentlessly hard-line foreign policy later put Goguryeo in difficulty.

    Samguk Sagi, Biographies, Gaesomun (Kim Bu-sik’s assessment)
  6. The Black Tortoise in a Goguryeo tomb muralThe Black Tortoise in a Goguryeo tomb mural (a turtle and a snake) · Joseon Gojeok Dobo (1915)

    Bringing In Daoism

    In 624, Emperor Gaozu of Tang sent a Daoist priest to lecture on the Laozi, and the next year Goguryeo in turn sent people to study Buddhism and Daoism. In 643, Yeon Gaesomun asked for Daoism, saying that “the three teachings, Confucianism, Buddhism and Daoism, are like the three legs of a cauldron,” and Emperor Taizong of Tang sent eight Daoist priests, including Shuda, together with the Daodejing; the king lodged them in Buddhist temples. The Samguk Yusa tells that Bodeok, a monk of Ballyongsa Temple, worried by this, repeatedly tried to dissuade the king and then, in 650 (one record says 667), moved south to Mount Godae in Wansan-ju (today’s Jeonju); a legend has it that he flew his bangjang (the room where a monk lives) there by supernatural power. As for why Daoism was brought in, there are various views: that it was meant to smooth relations with Tang, whose rulers honored Laozi as their ancestor, or that it was meant to curb noble factions close to Buddhism.

    Samguk Sagi, Goguryeo Annals, King Yeongnyu · Samguk Sagi, Goguryeo Annals, King Bojang · Samguk Yusa, “King Bojang Honors Laozi; Bodeok Moves His Hermitage”
  7. Imagined Scenes

    Yeoul and his father and mother are not in the records; they are imagined characters. The gyeonggwan being torn down, the way the wall was built and its workers, the scene of Chen Dade passing by the wall and the old man he met, the scene of Yeon Gaesomun arriving at the site and his words there, the rumor among the workers, Bodeok standing by on the day the Daoist priests arrived, the secret meeting, the feast and the following dawn, and the scene of Emperor Taizong and Zhangsun Wuji in the pavilion were also invented on the basis of the records. Chen Dade was a real person, believed to have recorded what he saw and heard in Goguryeo in the Fengshi Gaoli ji (Record of an Embassy to Goguryeo); the book survives only in fragments quoted in the Hanyuan and other works.

Key Words of This Episode

Next episode

Episode 36 · Autumn at Ansi Fortress

In 645, Emperor Taizong of Tang leads a great army across the Liao River in person. Liaodong Fortress and Baegam Fortress fall one after another — and before Ansi Fortress, held by a lord whose name is lost, a giant earthen mound rises.

Photo credits

All illustrations in this webtoon are original. Character names and dialogue are imaginative reconstructions based on historical facts and research. Dates and interpretations follow mainstream scholarship; where scholars disagree, the History Notes say so.