King Sejong

By Nayeon Lee
 Table Of Contents

Introduction . . . 3
Childhood . . . 4
Adulthood . . . 6
Accomplishments. . . 8
Quotes . . . 10
Timeline . . . 12
Conclusion . . . 14
About the Author . . .15

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Introduction
Today you will learn about King Sejong who was king of
Joseon. Joseon was one of period of Korea.

But unfortunately, some people in Korea use profanity and

say loanwords. For this, many people in Korea make some
posters, games and challenges to make them use Korean
correctly. For example, ‘Delicate and beautiful Korea’. Such
as this sentences, those are very effective!

He invented a lot of things that are necessary. He loved his

nation and citizens who lived there. Also, he loved meat!
That is a reason he died early. He conducted a study of
Hangul with scholars. Hangul is a language of Korea. If
there wasn’t Hangul, Korean might use language of other
countries.

Do you know how King Sejong make Hangul? He made

Hangul about surrounding life. For consonant, he made
the words with avoirdupois about pronunciation agency.
For vowel, he made avoirdupois words about life. Hangul is
really meaningful and scientific!
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 Childhood
He was born on May 15, 1397 and he died on March 30,
1450. He had two brothers. His father is Bangwon Lee
and Mother is Wonkeyeong Min. He loved science. Also
he loved to read books. Even he was sick because he read
too many books.

He loved books so he learned many things from books. He

learned all subjects from private teachers because he was
from a royal family. Maybe his parents doesn’t want
him to study in Korean School. Studying by private
teachers will helps him more. So he didn’t go to the
Korean School.

One day, Sejong’s father “I told you stop reading books for
a while. Reading books are good, but it can hurts you.”
and Sejong said “Dad, don’t be worry about it. Reading
books make me happy.” Sejong read a book many times
because he thought reading a book in only 1 time is not
enough to understand. Sejong’s father thought Sejong is
studying very hard of his sons. He looked at him very
proudly.

But Sejong’s father was little bit hard to choose next king.
He didn’t choose first and second sons. Because first son
liked to play and second son was very sick. So he choose
third son who is Sejong. Sejong thought very thank you to
4 his family.
It was the first day that he become a king. He collected all
the genius in Joseon. He thought ‘ Scholarship is so wide
and deep!’ Although he became a king, he read books
constantly, and conducted a study with scholars.

He was young, but he controlled his country very well. He

didn’t only care about him, he took care of his nation more
and citizens. He controlled his country for 32 years!

It is the result of the king to read many books and study

hard since he was young.

This house is a palace which

King Sejong lived. 5
 Adulthood
When he became 30 years old, he brought a youth named
Yeongsil Jang. He was good at dexterity since childhood.
So King Sejong thought he’ll helps him. Yeongsil’s
status was very low. But he invented many things so
King Sejong made Yeongsil’s status high. They made a
lot of things. But the most important things are Korean
sundial, Korean surveyor, Korean water clock and
Korean seeing stars machine. Also measuring movement
and position machine.

What is the Korean Sundial? We call it Angbuilgu.

Angbuilgu is an old Joseon clock that can tell the time by
the sun. You know that science didn’t develop in the
past,right? So Korean could what time was.

What is the Korean Surveyor? We call it Ceukugi.

Ceukugi is a mechanism to measure how much rain has
come. It also used long time ago.

What is the Korean Water Clock? We call it Jageukru.

Jageukru is a water clock that automatically tells you the
time. And what are Korean Seeing Stars Machine and
measuring movement and position machine?
Korean seeing stars machine is Guancheondae.
Guancheondae is a machine that observes stars in the sky.
Also sun and moon. And measuring movement and
position machine is Honcheoneu. Honcheoneu is to measure
6 the movement and position of the celestial bodies.
These all things are important, but more important thing is
Hangul!

Before he started to make Hangul, they used Chinese.

Chinese were hard to learn even some people don’t know how
to write. Many people didn’t know how to write, so they had
a lot of unfair things.

One day, King Sejong ask to prince, “Can you make a

bird cry?” The prince started to imitating.
“Tweet,tweet,chatter,chatter” King Sejong asked again.
“Can you write it?” The prince answered. “I can’t write it
because Chinese is mean something.” Since then, King
Sejong stayed up all night studying the shapes of letters.
So he became very sick. But he didn’t care of him self
because he thought he should make Korean as soon as
possible. And Hangul was made. He succeeded to make
Hangul.

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 Accomplishments
Jong-moo Lee led 22 military ships to the Japanese
invasion of Daemado, and in 1419, King Sejong’s first
year of King Sejong’s reign, he ordered Daemado Island
to be subjugated to Gyeongsang-do.

The death penalty shall be the “Three times Psychological

Law” so the no one dies unjustly.

He set up a custom made temple (the government office

responsible for music) to arrange the royal music, ‘Aak’
to Parkyeon. They encouraged music by compiling sheet
music of Aak.

What is saga reading? The system of recruiting young

tattoos to foster talented human resources and giving
them leave to concentrate on reading.

King Sejong recognized Kwannobi as a “people” and

increased maternity leave by setting a low on her
maternity leave.

Completion of 36 volumes of Taejong’g silk (history of

Taejong period) under the supervision of Hwanghee.

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It is a book made by gathering the deeds of loyalists Hyoja,
and enamored women who will be good examples in the
Samgang of the military, the rich, the couple in the
Chinese books.

In 1434, King Sejong ordered Icheon, Yeongsil Jang, and

others to make a sheet of metal for printing letters. It’s
bigger and looks better than the previous type. It’s name is
‘Gabinja’.

Hunminjungeum was share and

Hunminjungeumheryebon was completed.

He was sick, but he always like to read books and he loved

citizens.

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 Quotes
“It is in order to avoid confusion in undertakings by the
people that they have a king rule over them. How, then,
could a king hope to live up to the dignity expected of him
as a ruler when he refuses to hear out his people when they
bring to his attention injustices done to him?”

“A wise ruler should not neglect minority opinions and

give a careful hearing. Nevertheless, it would be foolish
for a monarch to make decisions based on a single
person’s opinion.”

“Leading a sheltered existence inside a palace, I am not

aware of all the going-ons among the people. If there are
any matters that cause anguish to the people, you should
report them to me without failing.”

“Although those of superior ranks are wiser than their

subordinates and should be able to make the right
decisions, the subordinates must not hesitate to correct
their superiors, if they feel with certainty that the latter’s
decisions are wrong.”

“The people are the roots of a nation, and the roots should be
strong so as to create a peaceful nation.”

“One of the most essential ingredients of great

statesmanship is trust, and especially expressing trust.”
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 How could a king who should rule over all people and all
things in the country with impartiality treat those of low
birth any differently form the way he treats other?”

“Unlike many other occupations,scholars have the greatest

responsibility to the people. Their work can ultimately
improve the lives of all people for many decades. But if an
academic becomes lost in his study, he cannot see how his
work can benefit others. Therefore, like a well-balanced
fencing stance, or a reasonable argument, the scholar’s life
must be even and balanced.”

“A record of extraordinary efforts for the common happiness

of the people.”

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 Timeline
1
1397 He was born on May 15th.

1408 He married with Queen Soheon

1418 His father decided to ch

1418 He became th

1420 He m
142

This is timeline of
King Sejong.
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 1443
He made Hangul.
1446 1450 He died.
n. He notified Hangul to his citizens.

hoose Sejong to be a king.

he 4th King of Joseon.

made a meeting with scholars.

29 He made book of agriculture.

1433 He made measuring movement
and position machine.

1434 He made sundial and

water clock.

1441 He made
surveyor. 13
 Conclusion
In conclusion, King Sejong was a great person in history.
Even some people in other country know him!!! He is so
famous!

On October 9th is Hangul Day. It is a day to publicize the

excellence of Hangul and celebrate King Sejong’s
proclamation of Hunminjeongeum.

In Seoul which is city of Korea, there is a statue of King

Sejong. In front of this statue, there is sundial,
measuring movement and position machine...etc. Many
people take pictures and respect him.

He died early because he had diabetes, and veneral

diseases. He didn’t care his body because he was very busy
to study.

He was a great King of Joseon! Let’s respect him!!!

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About the Author
I am Nayeon who wrote this book. Did you learn a lot of
things of King Sejong? Thank you for reading this book.

I wrote about King Sejong because he is really important to

Korean. Some of you can be not Korean,but I want to share
this person.

This person who is King Sejong is very important because

he made many things and he loved his citizens. Specially
Hangul is important.

His character traits are caring, studious loving. Because he

always think his citizens and he study very hard.

I hope you get a lot of information!

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